{
 "version": "2026-10-20",
 "license": "Dimension sheets: CC BY 4.0. Standard and published-size files: CC BY 4.0. Xem Studio's own designs (files_license = Xem Studio Design License): free to use and sell things from, not to redistribute as files — https://xemstudio.com/license/. Other publishers' files: their own license, linked beside them.",
 "slug": "taper-pins-iso-2339-ansi-b18-8-2",
 "name": "Taper pins: ISO 2339 / DIN 1 (1:50) and ANSI / ASME No. 7/0 to No. 14 (1/4 in per foot): diameters, taper, lengths + example taper pin models",
 "kind": "standard",
 "category": "Hardware",
 "group": "Fasteners",
 "year": null,
 "question": "What are the small and large end diameters of an ISO 2339 taper pin or an ANSI No. 5 taper pin, and what taper?",
 "tags": [
  "taper pin",
  "iso 2339",
  "din 1",
  "ansi b18.8.2",
  "taper pin number",
  "1:50 taper",
  "1/4 per foot taper",
  "fastener",
  "locating pin"
 ],
 "aliases": [
  "iso 2339 taper pin dimensions",
  "din 1 taper pin",
  "taper pin 1:50",
  "taper pin size chart no 5",
  "taper pin number 7 large end diameter",
  "taper pin 1/4 inch per foot",
  "no 10 taper pin diameter",
  "taper pin small end diameter formula",
  "ansi taper pin numbers",
  "taper pin number 3 diameter .219",
  "metric taper pin 6x40",
  "taper pin h10 tolerance"
 ],
 "overall_mm": {
  "length": 17.9,
  "width": 17.9,
  "height": 50.8
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 24,
 "url": "https://xemstudio.com/objects/taper-pins-iso-2339-ansi-b18-8-2/",
 "sheet_txt": "https://xemstudio.com/objects/taper-pins-iso-2339-ansi-b18-8-2/sheet.txt",
 "sheet": {
  "basis": "fasten.it's ISO 2339 table and iTeh's ISO 2339:1986 sample pages (taper, length list), Lawson Products' listings for the 1:50 and 1/4 in per foot tapers, McMaster-Carr's taper-pin tables for the inch No. 7/0 to 14 (which McMaster files under ASME B18.8.2) and a metric cross-check; 24 example pins as files",
  "overall_mm": {
   "length": 17.9,
   "width": 17.9,
   "height": 50.8
  },
  "notes": [
   "ISO 2339 (DIN 1) taper pins, unhardened, 0.6 to 50 mm: the nominal d is the small end diameter (d max = nominal, d min per the table; the h10 class column is in iTeh's sample page) and the taper is 1:50, i.e. 1 mm on diameter for every 50 mm of length (Lawson's M3 x 50 mm listing: 4 mm large end; McMaster's metric table: 4 mm small end, 20 to 60 mm long, 4.4 to 5.2 mm large end). a approx. is the table's value (the sources read do not define it). Type A pins are ground (Ra 0.8 µm), type B turned (Ra 3.2 µm), designation example 'Taper pin ISO 2339 - A - 6 x 30 - St' (iTeh OCR). Nominal lengths are the same list as the parallel pins: 2 to 100 in steps (2, 3, 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 35, 40, 45, 50, 55 ... 100), then 120 to 200 (iTeh). The large end of any ISO pin is d + l / 50, computed on the models; it is not a table column.",
   "Inch rows: pin No. 7/0 to No. 14 with the large end diameter and length range McMaster prints, and the small end range it prints for those lengths; the pin number is the standard's size designation (the large end for No. 5, for example, is 0.289 in, for No. 9 it is 0.591 in, Lawson's ANSI B18.8.2 listing agrees on No. 9: taper 1/4 in per foot, large end 0.591 in). McMaster describes inch pins as 1:48 (about 1/4 in per foot). Small end = large end − length / 48 reproduces McMaster's small-end ranges at both ends of the length range for No. 7/0 (0.063 − 0.75 / 48 = 0.0474; printed 0.047) and No. 5 (0.289 − 1.5 / 48 = 0.2578; printed 0.258). The B18.8.2 standard itself was not read; the dimensions are McMaster's tables, labelled as such.",
   "McMaster also lists tapped and threaded taper pins (internal thread for pulling, or an external thread for a nut), the threaded types at metric sizes 5 to 30 mm small end and inch No. 1 to 14; those are not tabulated here.",
   "Hole: a taper pin goes in a hole reamed to the same taper (1:50 or 1/4 in per foot); the taper reamer's own geometry is not in the sources read. Pin ends: the metric table prints a approx., but the sources read do not say what it measures; no end form is modelled.",
   "Files: true-size cones, small end at z = 0. Metric: small end Ø3, 4, 5, 6, 8, 10, 12 mm at the example lengths 30, 30, 40, 40, 50, 60, 60 mm (all inside McMaster's listed ranges). Inch: No. 7/0 to 2/0 at 0.75 in and No. 0 to 10 at 2 in (all inside McMaster's listed length ranges). Lengths are Xem's choices. No chamfer or crown on the ends. McMaster-Carr sells taper pins with per-part STEP; its category is linked, not copied."
  ],
  "table": {
   "columns": [
    "system",
    "size",
    "ISO: d min (mm) | inch: large end",
    "ISO: a approx. (mm) | inch: length range",
    "inch: small end range (McMaster)"
   ],
   "rows": [
    [
     "ISO 2339 metric (1:50)",
     "0.6 (small end, nominal = max)",
     "0.56",
     "0.08",
     "—"
    ],
    [
     "ISO 2339 metric (1:50)",
     "0.8 (small end, nominal = max)",
     "0.76",
     "0.1",
     "—"
    ],
    [
     "ISO 2339 metric (1:50)",
     "1 (small end, nominal = max)",
     "0.96",
     "0.12",
     "—"
    ],
    [
     "ISO 2339 metric (1:50)",
     "1.2 (small end, nominal = max)",
     "1.16",
     "0.16",
     "—"
    ],
    [
     "ISO 2339 metric (1:50)",
     "1.5 (small end, nominal = max)",
     "1.46",
     "0.2",
     "—"
    ],
    [
     "ISO 2339 metric (1:50)",
     "2 (small end, nominal = max)",
     "1.96",
     "0.25",
     "—"
    ],
    [
     "ISO 2339 metric (1:50)",
     "2.5 (small end, nominal = max)",
     "2.46",
     "0.3",
     "—"
    ],
    [
     "ISO 2339 metric (1:50)",
     "3 (small end, nominal = max)",
     "2.96",
     "0.4",
     "—"
    ],
    [
     "ISO 2339 metric (1:50)",
     "4 (small end, nominal = max)",
     "3.952",
     "0.5",
     "—"
    ],
    [
     "ISO 2339 metric (1:50)",
     "5 (small end, nominal = max)",
     "4.952",
     "0.63",
     "—"
    ],
    [
     "ISO 2339 metric (1:50)",
     "6 (small end, nominal = max)",
     "5.952",
     "0.8",
     "—"
    ],
    [
     "ISO 2339 metric (1:50)",
     "8 (small end, nominal = max)",
     "7.942",
     "1",
     "—"
    ],
    [
     "ISO 2339 metric (1:50)",
     "10 (small end, nominal = max)",
     "9.942",
     "1.2",
     "—"
    ],
    [
     "ISO 2339 metric (1:50)",
     "12 (small end, nominal = max)",
     "11.93",
     "1.6",
     "—"
    ],
    [
     "ISO 2339 metric (1:50)",
     "16 (small end, nominal = max)",
     "15.93",
     "2",
     "—"
    ],
    [
     "ISO 2339 metric (1:50)",
     "20 (small end, nominal = max)",
     "19.916",
     "2.5",
     "—"
    ],
    [
     "ISO 2339 metric (1:50)",
     "25 (small end, nominal = max)",
     "24.916",
     "3",
     "—"
    ],
    [
     "ISO 2339 metric (1:50)",
     "30 (small end, nominal = max)",
     "29.916",
     "4",
     "—"
    ],
    [
     "ISO 2339 metric (1:50)",
     "40 (small end, nominal = max)",
     "39.9",
     "5",
     "—"
    ],
    [
     "ISO 2339 metric (1:50)",
     "50 (small end, nominal = max)",
     "49.9",
     "6.3",
     "—"
    ],
    [
     "ANSI / ASME inch (1/4 in per ft)",
     "No. 7/0",
     "0.063 in (1.60 mm, computed) large end",
     "length 1/2\" to 3/4\"",
     "small end 0.047\" to 0.052\""
    ],
    [
     "ANSI / ASME inch (1/4 in per ft)",
     "No. 6/0",
     "0.078 in (1.98 mm, computed) large end",
     "length 1/2\" to 1\"",
     "small end 0.057\" to 0.068\""
    ],
    [
     "ANSI / ASME inch (1/4 in per ft)",
     "No. 5/0",
     "0.094 in (2.39 mm, computed) large end",
     "length 1/2\" to 1 1/2\"",
     "small end 0.063\" to 0.084\""
    ],
    [
     "ANSI / ASME inch (1/4 in per ft)",
     "No. 4/0",
     "0.109 in (2.77 mm, computed) large end",
     "length 1/2\" to 1 1/2\"",
     "small end 0.078\" to 0.099\""
    ],
    [
     "ANSI / ASME inch (1/4 in per ft)",
     "No. 3/0",
     "0.125 in (3.17 mm, computed) large end",
     "length 1/2\" to 1 1/2\"",
     "small end 0.094\" to 0.115\""
    ],
    [
     "ANSI / ASME inch (1/4 in per ft)",
     "No. 2/0",
     "0.141 in (3.58 mm, computed) large end",
     "length 3/4\" to 2 1/2\"",
     "small end 0.089\" to 0.125\""
    ],
    [
     "ANSI / ASME inch (1/4 in per ft)",
     "No. 0",
     "0.156 in (3.96 mm, computed) large end",
     "length 3/4\" to 3\"",
     "small end 0.094\" to 0.14\""
    ],
    [
     "ANSI / ASME inch (1/4 in per ft)",
     "No. 1",
     "0.172 in (4.37 mm, computed) large end",
     "length 3/4\" to 4\"",
     "small end 0.089\" to 0.156\""
    ],
    [
     "ANSI / ASME inch (1/4 in per ft)",
     "No. 2",
     "0.193 in (4.90 mm, computed) large end",
     "length 3/4\" to 4\"",
     "small end 0.11\" to 0.177\""
    ],
    [
     "ANSI / ASME inch (1/4 in per ft)",
     "No. 3",
     "0.219 in (5.56 mm, computed) large end",
     "length 3/4\" to 4\"",
     "small end 0.136\" to 0.203\""
    ],
    [
     "ANSI / ASME inch (1/4 in per ft)",
     "No. 4",
     "0.250 in (6.35 mm, computed) large end",
     "length 3/4\" to 4 1/2\"",
     "small end 0.156\" to 0.234\""
    ],
    [
     "ANSI / ASME inch (1/4 in per ft)",
     "No. 5",
     "0.289 in (7.34 mm, computed) large end",
     "length 1 1/2\" to 7\"",
     "small end 0.143\" to 0.258\""
    ],
    [
     "ANSI / ASME inch (1/4 in per ft)",
     "No. 6",
     "0.341 in (8.66 mm, computed) large end",
     "length 1 1/2\" to 6\"",
     "small end 0.216\" to 0.31\""
    ],
    [
     "ANSI / ASME inch (1/4 in per ft)",
     "No. 7",
     "0.409 in (10.39 mm, computed) large end",
     "length 1 3/4\" to 6\"",
     "small end 0.284\" to 0.373\""
    ],
    [
     "ANSI / ASME inch (1/4 in per ft)",
     "No. 8",
     "0.492 in (12.50 mm, computed) large end",
     "length 1 1/2\" to 7\"",
     "small end 0.346\" to 0.461\""
    ],
    [
     "ANSI / ASME inch (1/4 in per ft)",
     "No. 9",
     "0.591 in (15.01 mm, computed) large end",
     "length 2\" to 7\"",
     "small end 0.445\" to 0.549\""
    ],
    [
     "ANSI / ASME inch (1/4 in per ft)",
     "No. 10",
     "0.706 in (17.93 mm, computed) large end",
     "length 2\" to 8\"",
     "small end 0.539\" to 0.664\""
    ],
    [
     "ANSI / ASME inch (1/4 in per ft)",
     "No. 11",
     "0.860 in (21.84 mm, computed) large end",
     "length 5\" to 12\"",
     "small end 0.61\" to 0.756\""
    ],
    [
     "ANSI / ASME inch (1/4 in per ft)",
     "No. 12",
     "1.032 in (26.21 mm, computed) large end",
     "length 5\" to 12\"",
     "small end 0.782\" to 0.928\""
    ],
    [
     "ANSI / ASME inch (1/4 in per ft)",
     "No. 13",
     "1.241 in (31.52 mm, computed) large end",
     "length 12\"",
     "small end 0.991\""
    ],
    [
     "ANSI / ASME inch (1/4 in per ft)",
     "No. 14",
     "1.523 in (38.68 mm, computed) large end",
     "length 12\"",
     "small end 1.273\""
    ]
   ]
  }
 },
 "sheet_text": "Taper pins: ISO 2339 / DIN 1 (1:50) and ANSI / ASME No. 7/0 to No. 14 (1/4 in per foot): diameters, taper, lengths + example taper pin models — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/taper-pins-iso-2339-ansi-b18-8-2/  (sheet CC BY 4.0)\nBasis: fasten.it's ISO 2339 table and iTeh's ISO 2339:1986 sample pages (taper, length list), Lawson Products' listings for the 1:50 and 1/4 in per foot tapers, McMaster-Carr's taper-pin tables for the inch No. 7/0 to 14 (which McMaster files under ASME B18.8.2) and a metric cross-check; 24 example pins as files\nCatalog version: 2026-10-20\n\nOverall (mm): length 17.9, width 17.9, height 50.8\n- ISO 2339 (DIN 1) taper pins, unhardened, 0.6 to 50 mm: the nominal d is the small end diameter (d max = nominal, d min per the table; the h10 class column is in iTeh's sample page) and the taper is 1:50, i.e. 1 mm on diameter for every 50 mm of length (Lawson's M3 x 50 mm listing: 4 mm large end; McMaster's metric table: 4 mm small end, 20 to 60 mm long, 4.4 to 5.2 mm large end). a approx. is the table's value (the sources read do not define it). Type A pins are ground (Ra 0.8 µm), type B turned (Ra 3.2 µm), designation example 'Taper pin ISO 2339 - A - 6 x 30 - St' (iTeh OCR). Nominal lengths are the same list as the parallel pins: 2 to 100 in steps (2, 3, 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 35, 40, 45, 50, 55 ... 100), then 120 to 200 (iTeh). The large end of any ISO pin is d + l / 50, computed on the models; it is not a table column.\n- Inch rows: pin No. 7/0 to No. 14 with the large end diameter and length range McMaster prints, and the small end range it prints for those lengths; the pin number is the standard's size designation (the large end for No. 5, for example, is 0.289 in, for No. 9 it is 0.591 in, Lawson's ANSI B18.8.2 listing agrees on No. 9: taper 1/4 in per foot, large end 0.591 in). McMaster describes inch pins as 1:48 (about 1/4 in per foot). Small end = large end − length / 48 reproduces McMaster's small-end ranges at both ends of the length range for No. 7/0 (0.063 − 0.75 / 48 = 0.0474; printed 0.047) and No. 5 (0.289 − 1.5 / 48 = 0.2578; printed 0.258). The B18.8.2 standard itself was not read; the dimensions are McMaster's tables, labelled as such.\n- McMaster also lists tapped and threaded taper pins (internal thread for pulling, or an external thread for a nut), the threaded types at metric sizes 5 to 30 mm small end and inch No. 1 to 14; those are not tabulated here.\n- Hole: a taper pin goes in a hole reamed to the same taper (1:50 or 1/4 in per foot); the taper reamer's own geometry is not in the sources read. Pin ends: the metric table prints a approx., but the sources read do not say what it measures; no end form is modelled.\n- Files: true-size cones, small end at z = 0. Metric: small end Ø3, 4, 5, 6, 8, 10, 12 mm at the example lengths 30, 30, 40, 40, 50, 60, 60 mm (all inside McMaster's listed ranges). Inch: No. 7/0 to 2/0 at 0.75 in and No. 0 to 10 at 2 in (all inside McMaster's listed length ranges). Lengths are Xem's choices. No chamfer or crown on the ends. McMaster-Carr sells taper pins with per-part STEP; its category is linked, not copied.\n\nsystem  size  ISO: d min (mm) | inch: large end  ISO: a approx. (mm) | inch: length range  inch: small end range (McMaster)\nISO 2339 metric (1:50)  0.6 (small end, nominal = max)  0.56  0.08  —\nISO 2339 metric (1:50)  0.8 (small end, nominal = max)  0.76  0.1  —\nISO 2339 metric (1:50)  1 (small end, nominal = max)  0.96  0.12  —\nISO 2339 metric (1:50)  1.2 (small end, nominal = max)  1.16  0.16  —\nISO 2339 metric (1:50)  1.5 (small end, nominal = max)  1.46  0.2  —\nISO 2339 metric (1:50)  2 (small end, nominal = max)  1.96  0.25  —\nISO 2339 metric (1:50)  2.5 (small end, nominal = max)  2.46  0.3  —\nISO 2339 metric (1:50)  3 (small end, nominal = max)  2.96  0.4  —\nISO 2339 metric (1:50)  4 (small end, nominal = max)  3.952  0.5  —\nISO 2339 metric (1:50)  5 (small end, nominal = max)  4.952  0.63  —\nISO 2339 metric (1:50)  6 (small end, nominal = max)  5.952  0.8  —\nISO 2339 metric (1:50)  8 (small end, nominal = max)  7.942  1  —\nISO 2339 metric (1:50)  10 (small end, nominal = max)  9.942  1.2  —\nISO 2339 metric (1:50)  12 (small end, nominal = max)  11.93  1.6  —\nISO 2339 metric (1:50)  16 (small end, nominal = max)  15.93  2  —\nISO 2339 metric (1:50)  20 (small end, nominal = max)  19.916  2.5  —\nISO 2339 metric (1:50)  25 (small end, nominal = max)  24.916  3  —\nISO 2339 metric (1:50)  30 (small end, nominal = max)  29.916  4  —\nISO 2339 metric (1:50)  40 (small end, nominal = max)  39.9  5  —\nISO 2339 metric (1:50)  50 (small end, nominal = max)  49.9  6.3  —\nANSI / ASME inch (1/4 in per ft)  No. 7/0  0.063 in (1.60 mm, computed) large end  length 1/2\" to 3/4\"  small end 0.047\" to 0.052\"\nANSI / ASME inch (1/4 in per ft)  No. 6/0  0.078 in (1.98 mm, computed) large end  length 1/2\" to 1\"  small end 0.057\" to 0.068\"\nANSI / ASME inch (1/4 in per ft)  No. 5/0  0.094 in (2.39 mm, computed) large end  length 1/2\" to 1 1/2\"  small end 0.063\" to 0.084\"\nANSI / ASME inch (1/4 in per ft)  No. 4/0  0.109 in (2.77 mm, computed) large end  length 1/2\" to 1 1/2\"  small end 0.078\" to 0.099\"\nANSI / ASME inch (1/4 in per ft)  No. 3/0  0.125 in (3.17 mm, computed) large end  length 1/2\" to 1 1/2\"  small end 0.094\" to 0.115\"\nANSI / ASME inch (1/4 in per ft)  No. 2/0  0.141 in (3.58 mm, computed) large end  length 3/4\" to 2 1/2\"  small end 0.089\" to 0.125\"\nANSI / ASME inch (1/4 in per ft)  No. 0  0.156 in (3.96 mm, computed) large end  length 3/4\" to 3\"  small end 0.094\" to 0.14\"\nANSI / ASME inch (1/4 in per ft)  No. 1  0.172 in (4.37 mm, computed) large end  length 3/4\" to 4\"  small end 0.089\" to 0.156\"\nANSI / ASME inch (1/4 in per ft)  No. 2  0.193 in (4.90 mm, computed) large end  length 3/4\" to 4\"  small end 0.11\" to 0.177\"\nANSI / ASME inch (1/4 in per ft)  No. 3  0.219 in (5.56 mm, computed) large end  length 3/4\" to 4\"  small end 0.136\" to 0.203\"\nANSI / ASME inch (1/4 in per ft)  No. 4  0.250 in (6.35 mm, computed) large end  length 3/4\" to 4 1/2\"  small end 0.156\" to 0.234\"\nANSI / ASME inch (1/4 in per ft)  No. 5  0.289 in (7.34 mm, computed) large end  length 1 1/2\" to 7\"  small end 0.143\" to 0.258\"\nANSI / ASME inch (1/4 in per ft)  No. 6  0.341 in (8.66 mm, computed) large end  length 1 1/2\" to 6\"  small end 0.216\" to 0.31\"\nANSI / ASME inch (1/4 in per ft)  No. 7  0.409 in (10.39 mm, computed) large end  length 1 3/4\" to 6\"  small end 0.284\" to 0.373\"\nANSI / ASME inch (1/4 in per ft)  No. 8  0.492 in (12.50 mm, computed) large end  length 1 1/2\" to 7\"  small end 0.346\" to 0.461\"\nANSI / ASME inch (1/4 in per ft)  No. 9  0.591 in (15.01 mm, computed) large end  length 2\" to 7\"  small end 0.445\" to 0.549\"\nANSI / ASME inch (1/4 in per ft)  No. 10  0.706 in (17.93 mm, computed) large end  length 2\" to 8\"  small end 0.539\" to 0.664\"\nANSI / ASME inch (1/4 in per ft)  No. 11  0.860 in (21.84 mm, computed) large end  length 5\" to 12\"  small end 0.61\" to 0.756\"\nANSI / ASME inch (1/4 in per ft)  No. 12  1.032 in (26.21 mm, computed) large end  length 5\" to 12\"  small end 0.782\" to 0.928\"\nANSI / ASME inch (1/4 in per ft)  No. 13  1.241 in (31.52 mm, computed) large end  length 12\"  small end 0.991\"\nANSI / ASME inch (1/4 in per ft)  No. 14  1.523 in (38.68 mm, computed) large end  length 12\"  small end 1.273\"\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- fasten.it: ISO 2339 taper pins, unhardened, d 0.6 to 50: d max = nominal, d min, a approx. (11/1986) — web — Reference page; numbers only — https://fasten.it/norms/norm/iso_2339\n- iTeh Standards: ISO 2339:1986 sample pages: Table 1 (d, a approx., h10 column), nominal lengths with min / max (2 to 200), type A ground Ra 0.8 µm / type B turned Ra 3.2 µm, designation (OCR) — web — Standards-body sample pages; numbers only — https://cdn.standards.iteh.ai/samples/7174/6d3e6dec32224d188b9d378f45e19cf7/ISO-2339-1986.pdf\n- Lawson Products: DIN 1 / ISO 2339 taper pin M3 x 50 mm: 1 mm taper for every 50 mm length, 4 mm large end diameter (listing) — web — Distributor listing; numbers only — https://www.lawsonproducts.com/products/din-1-iso-2339-taper-pin-m3-x-50mm-56279\n- Lawson Products: ANSI B18.8.2 taper pin No. 9 x 7 in: 1/4 in taper per foot, large end 0.591 in (19/32 in) (listing) — web — Distributor listing; numbers only — https://www.lawsonproducts.com/en-ca/products/ansi-b18-8-2-taper-pin-steel-9-x-7-55012\n- ISO: ISO 2339:1986: Taper pins, unhardened (standard body catalogue page; the standard itself is paid) — web — Standard body catalogue page — https://www.iso.org/standard/7174.html\n- McMaster-Carr: Steel taper drive pins (inch No. 7/0 to 14 and metric) (free STEP/IGES per part, for your own design use; no redistribution) — STEP, IGES, PDF — McMaster-Carr site terms: personal design use, no redistribution [verify license at link] — https://www.mcmaster.com/steel-taper-drive-pins\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 24 parts): https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/index.json\nAPI: https://xemstudio.com/api/geometry?object=taper-pins-iso-2339-ansi-b18-8-2\n",
 "sources": [
  {
   "publisher": "fasten.it",
   "title": "ISO 2339 taper pins, unhardened, d 0.6 to 50: d max = nominal, d min, a approx. (11/1986)",
   "url": "https://fasten.it/norms/norm/iso_2339",
   "formats": [
    "web"
   ],
   "license": "Reference page; numbers only",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "iTeh Standards",
   "title": "ISO 2339:1986 sample pages: Table 1 (d, a approx., h10 column), nominal lengths with min / max (2 to 200), type A ground Ra 0.8 µm / type B turned Ra 3.2 µm, designation (OCR)",
   "url": "https://cdn.standards.iteh.ai/samples/7174/6d3e6dec32224d188b9d378f45e19cf7/ISO-2339-1986.pdf",
   "formats": [
    "web"
   ],
   "license": "Standards-body sample pages; numbers only",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Lawson Products",
   "title": "DIN 1 / ISO 2339 taper pin M3 x 50 mm: 1 mm taper for every 50 mm length, 4 mm large end diameter (listing)",
   "url": "https://www.lawsonproducts.com/products/din-1-iso-2339-taper-pin-m3-x-50mm-56279",
   "formats": [
    "web"
   ],
   "license": "Distributor listing; numbers only",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Lawson Products",
   "title": "ANSI B18.8.2 taper pin No. 9 x 7 in: 1/4 in taper per foot, large end 0.591 in (19/32 in) (listing)",
   "url": "https://www.lawsonproducts.com/en-ca/products/ansi-b18-8-2-taper-pin-steel-9-x-7-55012",
   "formats": [
    "web"
   ],
   "license": "Distributor listing; numbers only",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "ISO",
   "title": "ISO 2339:1986: Taper pins, unhardened (standard body catalogue page; the standard itself is paid)",
   "url": "https://www.iso.org/standard/7174.html",
   "formats": [
    "web"
   ],
   "license": "Standard body catalogue page",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "McMaster-Carr",
   "title": "Steel taper drive pins (inch No. 7/0 to 14 and metric) (free STEP/IGES per part, for your own design use; no redistribution)",
   "url": "https://www.mcmaster.com/steel-taper-drive-pins",
   "formats": [
    "STEP",
    "IGES",
    "PDF"
   ],
   "license": "McMaster-Carr site terms: personal design use, no redistribution",
   "license_verified": false,
   "hosted": false
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "dowel-pins-iso-2338-8734",
  "dowel-pins-asme-b18-8-2-inch",
  "spring-pins-iso-8752-8750-asme-b18-8-2",
  "grooved-pins-iso-8739-8747",
  "clevis-pins-iso-2341",
  "clevis-pins",
  "morse-tapers-mt0-mt7"
 ],
 "fits": [],
 "dimensions": "exact (nominal, no tolerance added)",
 "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no tolerance added. Where a part meets another part, the object lists its mating features (feature, exact size, what it mates with, fit class: press, slide, run, socket, clamp or designed). Apply your process's allowance to those features only; 'designed' gaps are part of the design and stay as drawn. Typical accuracy by process and ISO 286 fits: https://xemstudio.com/tolerances/",
 "mating": [
  {
   "feature": "taper 1:50, small end d (ISO 2339)",
   "exact": "d 3, 4, 5, 6, 8, 10, 12 mm; large end = d + l / 50",
   "mates": "hole reamed to the same 1:50 taper with the small-end Ø d at its exit (the taper reamer's own geometry is not in the sources read)",
   "fit": "press",
   "files": "taper-pin-iso-"
  },
  {
   "feature": "taper 1/4 in per foot, large end (ANSI / ASME)",
   "exact": "No. 5 Ø0.289 in, No. 6 Ø0.341, No. 7 Ø0.409, No. 8 Ø0.492, No. 9 Ø0.591, No. 10 Ø0.706 in (McMaster's table)",
   "mates": "hole reamed 1/4 in per foot (1:48) with the large-end Ø per size",
   "fit": "press",
   "files": "taper-pin-ansi-"
  }
 ],
 "fit_classes": {
  "press": "stays put: pin, tube, bearing or magnet held by interference. ISO 286 equivalent: H7/p6 (locational interference) or tighter.",
  "slide": "assembles by hand and is held by a grub, pinch or clamp: shaft in a hub, rod in a socket, spigot in a bore. ISO 286 equivalent: H7/g6 or H7/h6.",
  "run": "turns or slides in use: pin in a link, rod through a guide. ISO 286 equivalent: H8/f7 (close running).",
  "socket": "large sliding fit: syringe barrel, sleeve, bobbin in a bore. ISO 286 equivalent: H9/d9 (free running) or looser.",
  "clamp": "split part that closes on the mating part with screws: make it at size.",
  "designed": "a gap that is part of the design (piston fit option, displacer gap, air gap): do not change."
 },
 "faq": [
  {
   "q": "What taper does a metric taper pin have?",
   "a": "1:50: 1 mm on the diameter every 50 mm of length (ISO 2339; Lawson's M3 x 50 listing and McMaster's metric table agree). The nominal d is the small end."
  },
  {
   "q": "What diameter is a No. 5 taper pin?",
   "a": "0.289 in at the large end, 1/4 in per foot taper (McMaster's inch table; the small end of a 1-1/2 in pin is about 0.258 in)."
  },
  {
   "q": "How do I find the small end of an inch taper pin?",
   "a": "Subtract length / 48 from the large end (1/4 in per foot is 1:48): No. 5 at 2 in is 0.289 − 2 / 48 = 0.247 in (computed)."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "taper-pin-iso-2339-3x30",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-iso-2339-3x30.step",
   "stl": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-iso-2339-3x30.stl",
   "note": "ISO 2339 taper pin, small end Ø3 (nominal d), length 30 mm (example, Xem's choice), taper 1:50 so the large end is Ø3.6 (computed: 3 + 30 / 50); no end chamfer or crown"
  },
  {
   "file": "taper-pin-iso-2339-4x30",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-iso-2339-4x30.step",
   "stl": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-iso-2339-4x30.stl",
   "note": "ISO 2339 taper pin, small end Ø4 (nominal d), length 30 mm (example, Xem's choice), taper 1:50 so the large end is Ø4.6 (computed: 4 + 30 / 50); no end chamfer or crown"
  },
  {
   "file": "taper-pin-iso-2339-5x40",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-iso-2339-5x40.step",
   "stl": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-iso-2339-5x40.stl",
   "note": "ISO 2339 taper pin, small end Ø5 (nominal d), length 40 mm (example, Xem's choice), taper 1:50 so the large end is Ø5.8 (computed: 5 + 40 / 50); no end chamfer or crown"
  },
  {
   "file": "taper-pin-iso-2339-6x40",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-iso-2339-6x40.step",
   "stl": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-iso-2339-6x40.stl",
   "note": "ISO 2339 taper pin, small end Ø6 (nominal d), length 40 mm (example, Xem's choice), taper 1:50 so the large end is Ø6.8 (computed: 6 + 40 / 50); no end chamfer or crown"
  },
  {
   "file": "taper-pin-iso-2339-8x50",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-iso-2339-8x50.step",
   "stl": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-iso-2339-8x50.stl",
   "note": "ISO 2339 taper pin, small end Ø8 (nominal d), length 50 mm (example, Xem's choice), taper 1:50 so the large end is Ø9 (computed: 8 + 50 / 50); no end chamfer or crown"
  },
  {
   "file": "taper-pin-iso-2339-10x60",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-iso-2339-10x60.step",
   "stl": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-iso-2339-10x60.stl",
   "note": "ISO 2339 taper pin, small end Ø10 (nominal d), length 60 mm (example, Xem's choice), taper 1:50 so the large end is Ø11.2 (computed: 10 + 60 / 50); no end chamfer or crown"
  },
  {
   "file": "taper-pin-iso-2339-12x60",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-iso-2339-12x60.step",
   "stl": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-iso-2339-12x60.stl",
   "note": "ISO 2339 taper pin, small end Ø12 (nominal d), length 60 mm (example, Xem's choice), taper 1:50 so the large end is Ø13.2 (computed: 12 + 60 / 50); no end chamfer or crown"
  },
  {
   "file": "taper-pin-ansi-no7-0-x-0-75in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no7-0-x-0-75in.step",
   "stl": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no7-0-x-0-75in.stl",
   "note": "ANSI / ASME taper pin No. 7/0: large end Ø0.063 in (1.60 mm), length 0.75 in (19.0 mm, example inside McMaster's listed range, Xem's choice), taper 1/4 in per foot (1:48), so the small end is Ø1.20 mm (computed: large end − length / 48); no end chamfer or crown"
  },
  {
   "file": "taper-pin-ansi-no6-0-x-0-75in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no6-0-x-0-75in.step",
   "stl": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no6-0-x-0-75in.stl",
   "note": "ANSI / ASME taper pin No. 6/0: large end Ø0.078 in (1.98 mm), length 0.75 in (19.0 mm, example inside McMaster's listed range, Xem's choice), taper 1/4 in per foot (1:48), so the small end is Ø1.58 mm (computed: large end − length / 48); no end chamfer or crown"
  },
  {
   "file": "taper-pin-ansi-no5-0-x-0-75in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no5-0-x-0-75in.step",
   "stl": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no5-0-x-0-75in.stl",
   "note": "ANSI / ASME taper pin No. 5/0: large end Ø0.094 in (2.39 mm), length 0.75 in (19.0 mm, example inside McMaster's listed range, Xem's choice), taper 1/4 in per foot (1:48), so the small end is Ø1.99 mm (computed: large end − length / 48); no end chamfer or crown"
  },
  {
   "file": "taper-pin-ansi-no4-0-x-0-75in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no4-0-x-0-75in.step",
   "stl": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no4-0-x-0-75in.stl",
   "note": "ANSI / ASME taper pin No. 4/0: large end Ø0.109 in (2.77 mm), length 0.75 in (19.0 mm, example inside McMaster's listed range, Xem's choice), taper 1/4 in per foot (1:48), so the small end is Ø2.37 mm (computed: large end − length / 48); no end chamfer or crown"
  },
  {
   "file": "taper-pin-ansi-no3-0-x-0-75in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no3-0-x-0-75in.step",
   "stl": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no3-0-x-0-75in.stl",
   "note": "ANSI / ASME taper pin No. 3/0: large end Ø0.125 in (3.17 mm), length 0.75 in (19.0 mm, example inside McMaster's listed range, Xem's choice), taper 1/4 in per foot (1:48), so the small end is Ø2.78 mm (computed: large end − length / 48); no end chamfer or crown"
  },
  {
   "file": "taper-pin-ansi-no2-0-x-0-75in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no2-0-x-0-75in.step",
   "stl": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no2-0-x-0-75in.stl",
   "note": "ANSI / ASME taper pin No. 2/0: large end Ø0.141 in (3.58 mm), length 0.75 in (19.0 mm, example inside McMaster's listed range, Xem's choice), taper 1/4 in per foot (1:48), so the small end is Ø3.18 mm (computed: large end − length / 48); no end chamfer or crown"
  },
  {
   "file": "taper-pin-ansi-no0-x-2in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no0-x-2in.step",
   "stl": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no0-x-2in.stl",
   "note": "ANSI / ASME taper pin No. 0: large end Ø0.156 in (3.96 mm), length 2 in (50.8 mm, example inside McMaster's listed range, Xem's choice), taper 1/4 in per foot (1:48), so the small end is Ø2.90 mm (computed: large end − length / 48); no end chamfer or crown"
  },
  {
   "file": "taper-pin-ansi-no1-x-2in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no1-x-2in.step",
   "stl": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no1-x-2in.stl",
   "note": "ANSI / ASME taper pin No. 1: large end Ø0.172 in (4.37 mm), length 2 in (50.8 mm, example inside McMaster's listed range, Xem's choice), taper 1/4 in per foot (1:48), so the small end is Ø3.31 mm (computed: large end − length / 48); no end chamfer or crown"
  },
  {
   "file": "taper-pin-ansi-no2-x-2in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no2-x-2in.step",
   "stl": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no2-x-2in.stl",
   "note": "ANSI / ASME taper pin No. 2: large end Ø0.193 in (4.90 mm), length 2 in (50.8 mm, example inside McMaster's listed range, Xem's choice), taper 1/4 in per foot (1:48), so the small end is Ø3.84 mm (computed: large end − length / 48); no end chamfer or crown"
  },
  {
   "file": "taper-pin-ansi-no3-x-2in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no3-x-2in.step",
   "stl": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no3-x-2in.stl",
   "note": "ANSI / ASME taper pin No. 3: large end Ø0.219 in (5.56 mm), length 2 in (50.8 mm, example inside McMaster's listed range, Xem's choice), taper 1/4 in per foot (1:48), so the small end is Ø4.50 mm (computed: large end − length / 48); no end chamfer or crown"
  },
  {
   "file": "taper-pin-ansi-no4-x-2in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no4-x-2in.step",
   "stl": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no4-x-2in.stl",
   "note": "ANSI / ASME taper pin No. 4: large end Ø0.250 in (6.35 mm), length 2 in (50.8 mm, example inside McMaster's listed range, Xem's choice), taper 1/4 in per foot (1:48), so the small end is Ø5.29 mm (computed: large end − length / 48); no end chamfer or crown"
  },
  {
   "file": "taper-pin-ansi-no5-x-2in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no5-x-2in.step",
   "stl": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no5-x-2in.stl",
   "note": "ANSI / ASME taper pin No. 5: large end Ø0.289 in (7.34 mm), length 2 in (50.8 mm, example inside McMaster's listed range, Xem's choice), taper 1/4 in per foot (1:48), so the small end is Ø6.28 mm (computed: large end − length / 48); no end chamfer or crown"
  },
  {
   "file": "taper-pin-ansi-no6-x-2in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no6-x-2in.step",
   "stl": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no6-x-2in.stl",
   "note": "ANSI / ASME taper pin No. 6: large end Ø0.341 in (8.66 mm), length 2 in (50.8 mm, example inside McMaster's listed range, Xem's choice), taper 1/4 in per foot (1:48), so the small end is Ø7.60 mm (computed: large end − length / 48); no end chamfer or crown"
  },
  {
   "file": "taper-pin-ansi-no7-x-2in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no7-x-2in.step",
   "stl": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no7-x-2in.stl",
   "note": "ANSI / ASME taper pin No. 7: large end Ø0.409 in (10.39 mm), length 2 in (50.8 mm, example inside McMaster's listed range, Xem's choice), taper 1/4 in per foot (1:48), so the small end is Ø9.33 mm (computed: large end − length / 48); no end chamfer or crown"
  },
  {
   "file": "taper-pin-ansi-no8-x-2in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no8-x-2in.step",
   "stl": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no8-x-2in.stl",
   "note": "ANSI / ASME taper pin No. 8: large end Ø0.492 in (12.50 mm), length 2 in (50.8 mm, example inside McMaster's listed range, Xem's choice), taper 1/4 in per foot (1:48), so the small end is Ø11.44 mm (computed: large end − length / 48); no end chamfer or crown"
  },
  {
   "file": "taper-pin-ansi-no9-x-2in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no9-x-2in.step",
   "stl": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no9-x-2in.stl",
   "note": "ANSI / ASME taper pin No. 9: large end Ø0.591 in (15.01 mm), length 2 in (50.8 mm, example inside McMaster's listed range, Xem's choice), taper 1/4 in per foot (1:48), so the small end is Ø13.95 mm (computed: large end − length / 48); no end chamfer or crown"
  },
  {
   "file": "taper-pin-ansi-no10-x-2in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no10-x-2in.step",
   "stl": "https://xemstudio.com/files/hardware/taper-pins-iso-2339-ansi-b18-8-2/taper-pin-ansi-no10-x-2in.stl",
   "note": "ANSI / ASME taper pin No. 10: large end Ø0.706 in (17.93 mm), length 2 in (50.8 mm, example inside McMaster's listed range, Xem's choice), taper 1/4 in per foot (1:48), so the small end is Ø16.87 mm (computed: large end − length / 48); no end chamfer or crown"
  }
 ],
 "markdown": "https://xemstudio.com/objects/taper-pins-iso-2339-ansi-b18-8-2/index.md"
}