{
 "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": "tee-nuts-for-wood-3-4-prong",
 "name": "Tee nuts (T-nuts) for wood, 3 and 4 prong, 4-40 to 3/8-16: barrel, flange, prong height, drill size + hole gauge",
 "kind": "standard",
 "category": "Hardware",
 "group": "Fasteners",
 "year": null,
 "question": "What size hole for a 1/4-20 tee nut, and what are the barrel diameter, flange diameter and prong height?",
 "tags": [
  "tee nut",
  "t nut",
  "t-nut",
  "four prong t nut",
  "4 prong tee nut",
  "furniture nut",
  "speed nut",
  "wood t nut",
  "1/4-20 tee nut",
  "pronged nut"
 ],
 "aliases": [
  "tee nut dimensions",
  "1/4-20 t nut hole size",
  "t nut drill size 5/16",
  "4 prong t nut dimensions",
  "t nut flange diameter",
  "tee nut barrel diameter 1/4-20",
  "10-24 t nut hole size",
  "t nut prong length",
  "3/8-16 t nut drill size",
  "5/16-18 t nut hole",
  "8-32 t nut dimensions",
  "tee nut vs t nut",
  "t nut for wood size chart"
 ],
 "overall_mm": {
  "length": 117,
  "width": 19.5,
  "height": 3
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 1,
 "url": "https://xemstudio.com/objects/tee-nuts-for-wood-3-4-prong/",
 "sheet_txt": "https://xemstudio.com/objects/tee-nuts-for-wood-3-4-prong/sheet.txt",
 "sheet": {
  "basis": "AFT Fasteners' 4-prong table and Tanner Bolt & Nut's 3- and 4-prong table (they agree on every 4-prong row read), McFeely's stainless and UltraGrip tee nut sizes; one hole-gauge file",
  "overall_mm": {
   "length": 117,
   "width": 19.5,
   "height": 3
  },
  "notes": [
   "Inches. The letters are the makers': H barrel height (length), G flange diameter, F barrel diameter, A prong height and T 'material thickness' (the sheet the nut is made of; the sheets do not say it is the flange thickness, so it is shown under their name). Drill size is the makers' installation hole. AFT and Tanner say there is no single standard for tee nuts and that these values are a guide; Tanner's tolerances are H and G ±1/32, F and T ±.015, A ±1/32 (inch). Material is C1004-10 low-carbon steel (AFT).",
   "AFT's 4-prong table and Tanner's agree on every 4-prong row read. Tanner also lists the 3-prong style (used in harder materials to limit splitting; 4-prong in hard or soft woods) and 4-40 sizes. A few rows have two values in the source: 5/16-18 × 5/8 four-prong is .375–.390 barrel, 1/4–5/16 prong height, .060–.063 T and 3/8 or 25/64 drill; 1/4-20 × 1/2 three-prong prong height is 7/32–1/4. Tanner's 5/16-18 × 1/2 3-prong is .360 / 3/8 where its 4-prong is .390 / 13/32; those are as printed.",
   "McFeely's stainless tee nuts: barrel height 9/32 for 10-24, 3/8 for 1/4-20, 1/2 for 5/16-18 and 7/16 for 3/8-16, base diameter 3/4, 3/4, 7/8 and 1 in, and 4 prongs. Its drill sizes carry an asterisk with no footnote ('test on scrap'). Its UltraGrip rows print values that do not read consistently (for example a 5/8 in height against a 5/16 in barrel) and are not tabulated.",
   "Files: one hole gauge, a plate with holes at the nine published drill sizes (13/64 to 29/64 in). Plate thickness, spacing and corner radius are Xem's choices. No tee nut model is drawn: the number of prongs and their width and shape are not published as numbers in the sheets read, only their height.",
   "Metric tee nuts (M6, M8) were not found in a source with checkable dimensions, so none are shown. Hammer-in / knock-in inserts are sold by McMaster-Carr with per-part STEP; its tee-nut-insert page is linked, not copied."
  ],
  "table": {
   "columns": [
    "style / source",
    "thread",
    "H barrel height (in)",
    "G flange diameter (in)",
    "F barrel diameter (in)",
    "A prong height (in)",
    "T material thickness (in)",
    "drill size (in)"
   ],
   "rows": [
    [
     "4-prong (AFT; Tanner agrees)",
     "6-32",
     "1/4",
     "1/2",
     ".188",
     "1/8",
     ".035",
     "13/64"
    ],
    [
     "4-prong (AFT; Tanner agrees)",
     "8-32",
     "1/4",
     "23/32",
     ".208",
     "3/16",
     ".031",
     "7/32"
    ],
    [
     "4-prong (AFT; Tanner agrees)",
     "8-32",
     "5/16",
     "3/4",
     ".208",
     "1/4",
     ".035",
     "7/32"
    ],
    [
     "4-prong (AFT; Tanner agrees)",
     "8-32",
     "3/8",
     "3/4",
     ".208",
     "1/4",
     ".035",
     "7/32"
    ],
    [
     "4-prong (AFT; Tanner agrees)",
     "8-32",
     "7/16",
     "3/4",
     ".208",
     "1/4",
     ".035",
     "7/32"
    ],
    [
     "4-prong (AFT; Tanner agrees)",
     "10-24",
     "5/16",
     "3/4",
     ".243",
     "7/32",
     ".040",
     "1/4"
    ],
    [
     "4-prong (AFT; Tanner agrees)",
     "10-24",
     "7/16",
     "23/32",
     ".243",
     "7/32",
     ".040",
     "1/4"
    ],
    [
     "4-prong (AFT; Tanner agrees)",
     "10-32",
     "5/16",
     "3/4",
     ".243",
     "7/32",
     ".040",
     "1/4"
    ],
    [
     "4-prong (AFT; Tanner agrees)",
     "10-32",
     "3/8",
     "3/4",
     ".243",
     "1/4",
     ".043",
     "1/4"
    ],
    [
     "4-prong (AFT; Tanner agrees)",
     "10-32",
     "7/16",
     "3/4",
     ".243",
     "7/32",
     ".043",
     "1/4"
    ],
    [
     "4-prong (AFT; Tanner agrees)",
     "1/4-20",
     "1/4",
     "3/4",
     ".305",
     "7/32",
     ".047",
     "5/16"
    ],
    [
     "4-prong (AFT; Tanner agrees)",
     "1/4-20",
     "5/16",
     "3/4",
     ".305",
     "7/32",
     ".047",
     "5/16"
    ],
    [
     "4-prong (AFT; Tanner agrees)",
     "1/4-20",
     "3/8",
     "3/4",
     ".305",
     "7/32",
     ".047",
     "5/16"
    ],
    [
     "4-prong (AFT; Tanner agrees)",
     "1/4-20",
     "7/16",
     "3/4",
     ".305",
     "1/4",
     ".047",
     "5/16"
    ],
    [
     "4-prong (AFT; Tanner agrees)",
     "1/4-20",
     "1/2",
     "3/4",
     ".305",
     "7/32",
     ".047",
     "5/16"
    ],
    [
     "4-prong (AFT; Tanner agrees)",
     "1/4-20",
     "9/16",
     "3/4",
     ".305",
     "1/4",
     ".047",
     "5/16"
    ],
    [
     "4-prong (AFT; Tanner agrees)",
     "1/4-20",
     "5/8",
     "3/4",
     ".306",
     "1/4",
     ".047",
     "5/16"
    ],
    [
     "4-prong (AFT; Tanner agrees)",
     "5/16-18",
     "5/16",
     "7/8",
     ".360",
     "9/32",
     ".047",
     "3/8"
    ],
    [
     "4-prong (AFT; Tanner agrees)",
     "5/16-18",
     "3/8",
     "7/8",
     ".390",
     "1/4",
     ".063",
     "25/64"
    ],
    [
     "4-prong (AFT; Tanner agrees)",
     "5/16-18",
     "7/16",
     "7/8",
     ".360",
     "1/4",
     ".047",
     "3/8"
    ],
    [
     "4-prong (AFT; Tanner agrees)",
     "5/16-18",
     "1/2",
     "7/8",
     ".390",
     "1/4",
     ".063",
     "13/32"
    ],
    [
     "4-prong (AFT; Tanner agrees)",
     "5/16-18",
     "5/8",
     "7/8",
     ".375–.390",
     "1/4–5/16",
     ".060–.063",
     "3/8 or 25/64"
    ],
    [
     "4-prong (AFT; Tanner agrees)",
     "3/8-16",
     "5/16",
     "1",
     ".440",
     "9/32",
     ".063",
     "27/64"
    ],
    [
     "4-prong (AFT; Tanner agrees)",
     "3/8-16",
     "7/16",
     "1",
     ".440",
     "11/32",
     ".063",
     "29/64"
    ],
    [
     "4-prong (AFT; Tanner agrees)",
     "3/8-16",
     "5/8",
     "1",
     ".440",
     "5/16",
     ".063",
     "29/64"
    ],
    [
     "3-prong (Tanner)",
     "4-40",
     "1/8",
     "23/64",
     ".130",
     "3/32",
     ".024",
     "9/64"
    ],
    [
     "3-prong (Tanner)",
     "4-40",
     "1/4",
     "23/64",
     ".141",
     "3/32",
     ".031",
     "9/64"
    ],
    [
     "3-prong (Tanner)",
     "6-32",
     "1/4",
     "1/2",
     ".188",
     "1/8",
     ".035",
     "13/64"
    ],
    [
     "3-prong (Tanner)",
     "8-32",
     "1/4",
     "23/32",
     ".208",
     "7/32",
     ".030",
     "7/32"
    ],
    [
     "3-prong (Tanner)",
     "8-32",
     "5/16",
     "3/4",
     ".208",
     "1/4",
     ".035",
     "7/32"
    ],
    [
     "3-prong (Tanner)",
     "10-24",
     "1/4",
     "3/4",
     ".243",
     "5/32",
     ".039",
     "1/4"
    ],
    [
     "3-prong (Tanner)",
     "10-24",
     "5/16",
     "3/4",
     ".243",
     "7/32",
     ".040",
     "1/4"
    ],
    [
     "3-prong (Tanner)",
     "10-24",
     "7/16",
     "3/4",
     ".243",
     "5/16",
     ".040",
     "1/4"
    ],
    [
     "3-prong (Tanner)",
     "10-32",
     "5/16",
     "3/4",
     ".243",
     "7/32",
     ".040",
     "1/4"
    ],
    [
     "3-prong (Tanner)",
     "10-32",
     "3/8",
     "3/4",
     ".243",
     "1/4",
     ".040",
     "1/4"
    ],
    [
     "3-prong (Tanner)",
     "10-32",
     "7/16",
     "3/4",
     ".243",
     "5/16",
     ".040",
     "1/4"
    ],
    [
     "3-prong (Tanner)",
     "1/4-20",
     "1/4",
     "3/4",
     ".305",
     "3/16",
     ".047",
     "5/16"
    ],
    [
     "3-prong (Tanner)",
     "1/4-20",
     "5/16",
     "3/4",
     ".305",
     "7/32",
     ".047",
     "5/16"
    ],
    [
     "3-prong (Tanner)",
     "1/4-20",
     "3/8",
     "3/4",
     ".305",
     "1/4",
     ".047",
     "5/16"
    ],
    [
     "3-prong (Tanner)",
     "1/4-20",
     "7/16",
     "3/4",
     ".305",
     "5/16",
     ".047",
     "5/16"
    ],
    [
     "3-prong (Tanner)",
     "1/4-20",
     "1/2",
     "3/4",
     ".305",
     "7/32–1/4",
     ".047",
     "5/16"
    ],
    [
     "3-prong (Tanner)",
     "1/4-20",
     "9/16",
     "3/4",
     ".305",
     "7/32",
     ".047",
     "5/16"
    ],
    [
     "3-prong (Tanner)",
     "5/16-18",
     "5/16",
     "7/8",
     ".360",
     "9/32",
     ".047",
     "3/8"
    ],
    [
     "3-prong (Tanner)",
     "5/16-18",
     "3/8",
     "7/8",
     ".390",
     "1/4",
     ".063",
     "25/64"
    ],
    [
     "3-prong (Tanner)",
     "5/16-18",
     "7/16",
     "7/8",
     ".390",
     "1/4",
     ".063",
     "13/32"
    ],
    [
     "3-prong (Tanner)",
     "5/16-18",
     "1/2",
     "7/8",
     ".360",
     "1/4",
     ".063",
     "3/8"
    ],
    [
     "3-prong (Tanner)",
     "5/16-18",
     "5/8",
     "7/8",
     ".390",
     "5/16",
     ".063",
     "25/64"
    ],
    [
     "3-prong (Tanner)",
     "3/8-16",
     "5/16",
     "1",
     ".420",
     "9/32",
     ".063",
     "27/64"
    ],
    [
     "3-prong (Tanner)",
     "3/8-16",
     "7/16",
     "1",
     ".440",
     "11/32",
     ".063",
     "29/64"
    ],
    [
     "3-prong (Tanner)",
     "3/8-16",
     "5/8",
     "1",
     ".440",
     "9/32",
     ".063",
     "29/64"
    ],
    [
     "4-prong 18-8 stainless (McFeely's)",
     "10-24",
     "9/32",
     "3/4",
     ".227–.232",
     "13/64",
     "—",
     "15/64"
    ],
    [
     "4-prong 18-8 stainless (McFeely's)",
     "1/4-20",
     "3/8",
     "3/4",
     ".306–.311",
     "13/64",
     "—",
     "5/16"
    ],
    [
     "4-prong 18-8 stainless (McFeely's)",
     "5/16-18",
     "1/2",
     "7/8",
     ".386–.391",
     "17/64",
     "—",
     "13/32"
    ],
    [
     "4-prong 18-8 stainless (McFeely's)",
     "3/8-16",
     "7/16",
     "1",
     ".466–.471",
     "21/64",
     "—",
     "31/64"
    ]
   ]
  }
 },
 "sheet_text": "Tee nuts (T-nuts) for wood, 3 and 4 prong, 4-40 to 3/8-16: barrel, flange, prong height, drill size + hole gauge — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/tee-nuts-for-wood-3-4-prong/  (sheet CC BY 4.0)\nBasis: AFT Fasteners' 4-prong table and Tanner Bolt & Nut's 3- and 4-prong table (they agree on every 4-prong row read), McFeely's stainless and UltraGrip tee nut sizes; one hole-gauge file\nCatalog version: 2026-10-20\n\nOverall (mm): length 117.0, width 19.5, height 3.0\n- Inches. The letters are the makers': H barrel height (length), G flange diameter, F barrel diameter, A prong height and T 'material thickness' (the sheet the nut is made of; the sheets do not say it is the flange thickness, so it is shown under their name). Drill size is the makers' installation hole. AFT and Tanner say there is no single standard for tee nuts and that these values are a guide; Tanner's tolerances are H and G ±1/32, F and T ±.015, A ±1/32 (inch). Material is C1004-10 low-carbon steel (AFT).\n- AFT's 4-prong table and Tanner's agree on every 4-prong row read. Tanner also lists the 3-prong style (used in harder materials to limit splitting; 4-prong in hard or soft woods) and 4-40 sizes. A few rows have two values in the source: 5/16-18 × 5/8 four-prong is .375–.390 barrel, 1/4–5/16 prong height, .060–.063 T and 3/8 or 25/64 drill; 1/4-20 × 1/2 three-prong prong height is 7/32–1/4. Tanner's 5/16-18 × 1/2 3-prong is .360 / 3/8 where its 4-prong is .390 / 13/32; those are as printed.\n- McFeely's stainless tee nuts: barrel height 9/32 for 10-24, 3/8 for 1/4-20, 1/2 for 5/16-18 and 7/16 for 3/8-16, base diameter 3/4, 3/4, 7/8 and 1 in, and 4 prongs. Its drill sizes carry an asterisk with no footnote ('test on scrap'). Its UltraGrip rows print values that do not read consistently (for example a 5/8 in height against a 5/16 in barrel) and are not tabulated.\n- Files: one hole gauge, a plate with holes at the nine published drill sizes (13/64 to 29/64 in). Plate thickness, spacing and corner radius are Xem's choices. No tee nut model is drawn: the number of prongs and their width and shape are not published as numbers in the sheets read, only their height.\n- Metric tee nuts (M6, M8) were not found in a source with checkable dimensions, so none are shown. Hammer-in / knock-in inserts are sold by McMaster-Carr with per-part STEP; its tee-nut-insert page is linked, not copied.\n\nstyle / source  thread  H barrel height (in)  G flange diameter (in)  F barrel diameter (in)  A prong height (in)  T material thickness (in)  drill size (in)\n4-prong (AFT; Tanner agrees)  6-32  1/4  1/2  .188  1/8  .035  13/64\n4-prong (AFT; Tanner agrees)  8-32  1/4  23/32  .208  3/16  .031  7/32\n4-prong (AFT; Tanner agrees)  8-32  5/16  3/4  .208  1/4  .035  7/32\n4-prong (AFT; Tanner agrees)  8-32  3/8  3/4  .208  1/4  .035  7/32\n4-prong (AFT; Tanner agrees)  8-32  7/16  3/4  .208  1/4  .035  7/32\n4-prong (AFT; Tanner agrees)  10-24  5/16  3/4  .243  7/32  .040  1/4\n4-prong (AFT; Tanner agrees)  10-24  7/16  23/32  .243  7/32  .040  1/4\n4-prong (AFT; Tanner agrees)  10-32  5/16  3/4  .243  7/32  .040  1/4\n4-prong (AFT; Tanner agrees)  10-32  3/8  3/4  .243  1/4  .043  1/4\n4-prong (AFT; Tanner agrees)  10-32  7/16  3/4  .243  7/32  .043  1/4\n4-prong (AFT; Tanner agrees)  1/4-20  1/4  3/4  .305  7/32  .047  5/16\n4-prong (AFT; Tanner agrees)  1/4-20  5/16  3/4  .305  7/32  .047  5/16\n4-prong (AFT; Tanner agrees)  1/4-20  3/8  3/4  .305  7/32  .047  5/16\n4-prong (AFT; Tanner agrees)  1/4-20  7/16  3/4  .305  1/4  .047  5/16\n4-prong (AFT; Tanner agrees)  1/4-20  1/2  3/4  .305  7/32  .047  5/16\n4-prong (AFT; Tanner agrees)  1/4-20  9/16  3/4  .305  1/4  .047  5/16\n4-prong (AFT; Tanner agrees)  1/4-20  5/8  3/4  .306  1/4  .047  5/16\n4-prong (AFT; Tanner agrees)  5/16-18  5/16  7/8  .360  9/32  .047  3/8\n4-prong (AFT; Tanner agrees)  5/16-18  3/8  7/8  .390  1/4  .063  25/64\n4-prong (AFT; Tanner agrees)  5/16-18  7/16  7/8  .360  1/4  .047  3/8\n4-prong (AFT; Tanner agrees)  5/16-18  1/2  7/8  .390  1/4  .063  13/32\n4-prong (AFT; Tanner agrees)  5/16-18  5/8  7/8  .375–.390  1/4–5/16  .060–.063  3/8 or 25/64\n4-prong (AFT; Tanner agrees)  3/8-16  5/16  1  .440  9/32  .063  27/64\n4-prong (AFT; Tanner agrees)  3/8-16  7/16  1  .440  11/32  .063  29/64\n4-prong (AFT; Tanner agrees)  3/8-16  5/8  1  .440  5/16  .063  29/64\n3-prong (Tanner)  4-40  1/8  23/64  .130  3/32  .024  9/64\n3-prong (Tanner)  4-40  1/4  23/64  .141  3/32  .031  9/64\n3-prong (Tanner)  6-32  1/4  1/2  .188  1/8  .035  13/64\n3-prong (Tanner)  8-32  1/4  23/32  .208  7/32  .030  7/32\n3-prong (Tanner)  8-32  5/16  3/4  .208  1/4  .035  7/32\n3-prong (Tanner)  10-24  1/4  3/4  .243  5/32  .039  1/4\n3-prong (Tanner)  10-24  5/16  3/4  .243  7/32  .040  1/4\n3-prong (Tanner)  10-24  7/16  3/4  .243  5/16  .040  1/4\n3-prong (Tanner)  10-32  5/16  3/4  .243  7/32  .040  1/4\n3-prong (Tanner)  10-32  3/8  3/4  .243  1/4  .040  1/4\n3-prong (Tanner)  10-32  7/16  3/4  .243  5/16  .040  1/4\n3-prong (Tanner)  1/4-20  1/4  3/4  .305  3/16  .047  5/16\n3-prong (Tanner)  1/4-20  5/16  3/4  .305  7/32  .047  5/16\n3-prong (Tanner)  1/4-20  3/8  3/4  .305  1/4  .047  5/16\n3-prong (Tanner)  1/4-20  7/16  3/4  .305  5/16  .047  5/16\n3-prong (Tanner)  1/4-20  1/2  3/4  .305  7/32–1/4  .047  5/16\n3-prong (Tanner)  1/4-20  9/16  3/4  .305  7/32  .047  5/16\n3-prong (Tanner)  5/16-18  5/16  7/8  .360  9/32  .047  3/8\n3-prong (Tanner)  5/16-18  3/8  7/8  .390  1/4  .063  25/64\n3-prong (Tanner)  5/16-18  7/16  7/8  .390  1/4  .063  13/32\n3-prong (Tanner)  5/16-18  1/2  7/8  .360  1/4  .063  3/8\n3-prong (Tanner)  5/16-18  5/8  7/8  .390  5/16  .063  25/64\n3-prong (Tanner)  3/8-16  5/16  1  .420  9/32  .063  27/64\n3-prong (Tanner)  3/8-16  7/16  1  .440  11/32  .063  29/64\n3-prong (Tanner)  3/8-16  5/8  1  .440  9/32  .063  29/64\n4-prong 18-8 stainless (McFeely's)  10-24  9/32  3/4  .227–.232  13/64  —  15/64\n4-prong 18-8 stainless (McFeely's)  1/4-20  3/8  3/4  .306–.311  13/64  —  5/16\n4-prong 18-8 stainless (McFeely's)  5/16-18  1/2  7/8  .386–.391  17/64  —  13/32\n4-prong 18-8 stainless (McFeely's)  3/8-16  7/16  1  .466–.471  21/64  —  31/64\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- AFT Fasteners: 4-prong T-nuts, straight barrel: thread, (H) barrel height, (G) flange diameter, (F) barrel diameter, (A) prong height, (T) material thickness, drill size; 6-32 to 3/8-16 — web — Distributor technical table; numbers only. Says there is no single standard for T-nuts — https://www.aftfasteners.com/4-prong-t-nuts-straight-barrel-technical-information/\n- Tanner Bolt & Nut (sheet hosted on a Shopify CDN): Nuts, tee: 3-prong and 4-prong T-nuts, straight barrel, H, G, F, A, T and drill size by part number; tolerances H, G ±1/32, F, T ±.015, A ±1/32 — web — Maker / distributor data sheet; numbers only — https://cdn2.shopify.com/s/files/1/0056/7856/3437/files/Nutstee.pdf\n- McFeely's: T-nuts (tee nuts) dimensions and drill sizes: 18-8 stainless tee nuts and UltraGrip T-nuts, barrel height, barrel diameter, base diameter, prong height, drill size — web — Distributor technical page; numbers only — https://www.mcfeelys.com/threaded_insert_and_t-nut_technical_information\n- McMaster-Carr: Tee-nut inserts for wood (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/tee-nut-inserts/\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/tee-nuts-for-wood-3-4-prong/index.json\nAPI: https://xemstudio.com/api/geometry?object=tee-nuts-for-wood-3-4-prong\n",
 "sources": [
  {
   "publisher": "AFT Fasteners",
   "title": "4-prong T-nuts, straight barrel: thread, (H) barrel height, (G) flange diameter, (F) barrel diameter, (A) prong height, (T) material thickness, drill size; 6-32 to 3/8-16",
   "url": "https://www.aftfasteners.com/4-prong-t-nuts-straight-barrel-technical-information/",
   "formats": [
    "web"
   ],
   "license": "Distributor technical table; numbers only. Says there is no single standard for T-nuts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Tanner Bolt & Nut (sheet hosted on a Shopify CDN)",
   "title": "Nuts, tee: 3-prong and 4-prong T-nuts, straight barrel, H, G, F, A, T and drill size by part number; tolerances H, G ±1/32, F, T ±.015, A ±1/32",
   "url": "https://cdn2.shopify.com/s/files/1/0056/7856/3437/files/Nutstee.pdf",
   "formats": [
    "web"
   ],
   "license": "Maker / distributor data sheet; numbers only",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "McFeely's",
   "title": "T-nuts (tee nuts) dimensions and drill sizes: 18-8 stainless tee nuts and UltraGrip T-nuts, barrel height, barrel diameter, base diameter, prong height, drill size",
   "url": "https://www.mcfeelys.com/threaded_insert_and_t-nut_technical_information",
   "formats": [
    "web"
   ],
   "license": "Distributor technical page; numbers only",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "McMaster-Carr",
   "title": "Tee-nut inserts for wood (free STEP/IGES per part, for your own design use; no redistribution)",
   "url": "https://www.mcmaster.com/tee-nut-inserts/",
   "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": [
  "cross-dowels-barrel-nuts-m4-m10",
  "rivet-nuts-flat-head",
  "slide-in-t-nuts",
  "drop-in-t-nuts",
  "imperial-machine-screws",
  "wood-screws-flat-head-inch"
 ],
 "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": "installation hole",
   "exact": "13/64, 7/32, 1/4, 5/16, 3/8, 25/64, 13/32, 27/64, 29/64 in (6-32 to 3/8-16)",
   "mates": "tee nut barrel F .188 to .440 in; prongs are driven into the wood face",
   "fit": "slide",
   "files": "tee-nut-hole-gauge"
  }
 ],
 "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 hole for a 1/4-20 tee nut?",
   "a": "5/16 in on AFT's and Tanner's tables for every 1/4-20 barrel length; barrel diameter .305 in, flange 3/4 in."
  },
  {
   "q": "How long are the prongs on a 1/4-20 × 3/8 tee nut?",
   "a": "7/32 in on the AFT 4-prong table (1/4 in on Tanner's 3-prong table)."
  },
  {
   "q": "Is there a standard for tee nut dimensions?",
   "a": "AFT and Tanner both say there is no single standard for T-nuts; the sizes are a guide."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "tee-nut-hole-gauge-13-64-to-29-64in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/tee-nuts-for-wood-3-4-prong/tee-nut-hole-gauge-13-64-to-29-64in.step",
   "stl": "https://xemstudio.com/files/hardware/tee-nuts-for-wood-3-4-prong/tee-nut-hole-gauge-13-64-to-29-64in.stl",
   "note": "hole gauge plate, 117.0 × 19.5 × 3 mm, nine holes at the published tee-nut drill sizes 13/64, 7/32, 1/4, 5/16, 3/8, 25/64, 13/32, 27/64, 29/64 in (5.16 to 11.51 mm), smallest first, 4 mm between hole edges and 4 mm of plate round the largest hole; plate thickness and spacing are Xem choices"
  }
 ],
 "markdown": "https://xemstudio.com/objects/tee-nuts-for-wood-3-4-prong/index.md"
}