{
 "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": "rod-ends-din-iso-12240-4",
 "name": "Rod ends / heim joints DIN ISO 12240-4 series K, 5 to 20 mm: bore, ball width, head diameter, thread, length (male and female)",
 "kind": "standard",
 "category": "Hardware",
 "group": "Bearings, rails & motion",
 "year": null,
 "question": "What are the dimensions of a 6 mm, 8 mm, 10 mm and 12 mm rod end (heim joint) to DIN ISO 12240-4: bore, width, head diameter, thread and length?",
 "tags": [
  "rod end",
  "heim joint",
  "ball joint",
  "m8",
  "m10",
  "din iso 12240",
  "uniball",
  "spherical",
  "tool"
 ],
 "aliases": [
  "rod end m8 dimensions",
  "rod end m10 dimensions",
  "rod end m6 dimensions",
  "rod end m12 dimensions",
  "heim joint 8mm",
  "heim joint 10mm",
  "heim joint dimensions",
  "rod end 8mm bore",
  "din iso 12240-4 rod end",
  "female rod end m8",
  "male rod end m8",
  "rod end m5",
  "rod end m16",
  "ball joint rod end dimensions",
  "rod end cad"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "not-scanned",
 "les": false,
 "free_files": 0,
 "url": "https://xemstudio.com/objects/rod-ends-din-iso-12240-4/",
 "sheet_txt": "https://xemstudio.com/objects/rod-ends-din-iso-12240-4/sheet.txt",
 "sheet": {
  "basis": "Maedler K43_803 table, M8 female row checked against Ameco; one series E male (Schaeffler GAR10-DO); McMaster-Carr linked for CAD",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "Rod ends (heim joints, ball joint rod ends) are a spherical plain bearing in an eye with a threaded shank: male (a threaded stud, AR / AL) or female (a threaded hole, IR / IL), right-hand or left-hand thread. Series K to DIN ISO 12240-4 is the table used here; the bore tolerance in the source is H7 and the female thread is ISO 6H.",
   "Numbers: Maedler's K43_803 table (nine sizes, 5 to 20 mm). The M8 female row matches Ameco's rod end sheet (bore 8, B 12, C1 9, d2 24, d3 12.5, d4 16, h1 36, l3 16) exactly. The B, C1, d1 and d2 columns are the same on the male and the female type in the source table (asserted); the remaining columns differ and are shown separately as female / male. The letters are the source's and are not interpreted here. G, α and weight columns of the source were not legible and are left out.",
   "A series E male rod end for comparison, Schaeffler GAR10-DO: bore 10, ball width B 9, ball Ø dK 16, head Ø d1 13.2, d2 29, h 48, C1 7, l1 26, l2 62.5, α 12°, thread M10 (single source).",
   "Files: none. A solid needs the eye shape, the shank flats and the thread run-out, which are not in the tables.",
   "Left out: the other rod-end lines (Igus, Misumi), series E tables other than GAR10, the L (left-hand) variants' tolerance, load ratings, chamfers."
  ],
  "table": {
   "columns": [
    "series K size",
    "bore d, mm",
    "B, mm",
    "C1, mm",
    "d1, mm",
    "d2, mm",
    "female: d3, mm",
    "female: d4, mm",
    "female: h1, mm",
    "female: l, mm",
    "male: h, mm",
    "male: l, mm",
    "thread"
   ],
   "rows": [
    [
     "K 5",
     "5",
     "8",
     "6",
     "7.7",
     "18",
     "9",
     "11",
     "27",
     "10",
     "33",
     "20",
     "M5"
    ],
    [
     "K 6",
     "6",
     "9",
     "6.75",
     "8.9",
     "20",
     "10",
     "13",
     "30",
     "12",
     "36",
     "22",
     "M6"
    ],
    [
     "K 8",
     "8",
     "12",
     "9",
     "10.4",
     "24",
     "12.5",
     "16",
     "36",
     "16",
     "42",
     "25",
     "M8"
    ],
    [
     "K 10",
     "10",
     "14",
     "10.5",
     "12.9",
     "28",
     "15",
     "19",
     "43",
     "20",
     "48",
     "29",
     "M10"
    ],
    [
     "K 12",
     "12",
     "16",
     "12",
     "15.4",
     "32",
     "17.5",
     "22",
     "50",
     "22",
     "54",
     "33",
     "M12"
    ],
    [
     "K 14",
     "14",
     "19",
     "13.5",
     "16.8",
     "36",
     "20",
     "25",
     "57",
     "25",
     "60",
     "36",
     "M14"
    ],
    [
     "K 16",
     "16",
     "21",
     "15",
     "19.3",
     "42",
     "22",
     "27",
     "64",
     "28",
     "66",
     "40",
     "M16"
    ],
    [
     "K 18",
     "18",
     "23",
     "16.5",
     "21.8",
     "46",
     "25",
     "31",
     "71",
     "32",
     "72",
     "44",
     "M18x1.5"
    ],
    [
     "K 20",
     "20",
     "25",
     "18",
     "24.3",
     "50",
     "27.5",
     "34",
     "77",
     "33",
     "78",
     "47",
     "M20x1.5"
    ]
   ]
  }
 },
 "sheet_text": "Rod ends / heim joints DIN ISO 12240-4 series K, 5 to 20 mm: bore, ball width, head diameter, thread, length (male and female) — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/rod-ends-din-iso-12240-4/  (sheet CC BY 4.0)\nBasis: Maedler K43_803 table, M8 female row checked against Ameco; one series E male (Schaeffler GAR10-DO); McMaster-Carr linked for CAD\nCatalog version: 2026-10-20\n\nSizes: see table below\n- Rod ends (heim joints, ball joint rod ends) are a spherical plain bearing in an eye with a threaded shank: male (a threaded stud, AR / AL) or female (a threaded hole, IR / IL), right-hand or left-hand thread. Series K to DIN ISO 12240-4 is the table used here; the bore tolerance in the source is H7 and the female thread is ISO 6H.\n- Numbers: Maedler's K43_803 table (nine sizes, 5 to 20 mm). The M8 female row matches Ameco's rod end sheet (bore 8, B 12, C1 9, d2 24, d3 12.5, d4 16, h1 36, l3 16) exactly. The B, C1, d1 and d2 columns are the same on the male and the female type in the source table (asserted); the remaining columns differ and are shown separately as female / male. The letters are the source's and are not interpreted here. G, α and weight columns of the source were not legible and are left out.\n- A series E male rod end for comparison, Schaeffler GAR10-DO: bore 10, ball width B 9, ball Ø dK 16, head Ø d1 13.2, d2 29, h 48, C1 7, l1 26, l2 62.5, α 12°, thread M10 (single source).\n- Files: none. A solid needs the eye shape, the shank flats and the thread run-out, which are not in the tables.\n- Left out: the other rod-end lines (Igus, Misumi), series E tables other than GAR10, the L (left-hand) variants' tolerance, load ratings, chamfers.\n\nseries K size  bore d, mm  B, mm  C1, mm  d1, mm  d2, mm  female: d3, mm  female: d4, mm  female: h1, mm  female: l, mm  male: h, mm  male: l, mm  thread\nK 5  5  8  6  7.7  18  9  11  27  10  33  20  M5\nK 6  6  9  6.75  8.9  20  10  13  30  12  36  22  M6\nK 8  8  12  9  10.4  24  12.5  16  36  16  42  25  M8\nK 10  10  14  10.5  12.9  28  15  19  43  20  48  29  M10\nK 12  12  16  12  15.4  32  17.5  22  50  22  54  33  M12\nK 14  14  19  13.5  16.8  36  20  25  57  25  60  36  M14\nK 16  16  21  15  19.3  42  22  27  64  28  66  40  M16\nK 18  18  23  16.5  21.8  46  25  31  71  32  72  44  M18x1.5\nK 20  20  25  18  24.3  50  27.5  34  77  33  78  47  M20x1.5\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Maedler (Mercateo data sheet K43_803): Rod ends DIN ISO 12240-4 series K, male (AR / AL) and female (IR / IL), d 5 to 20: B, C1, d1, d2, h, l, thread — web — Publisher's page; dimensions are facts — https://static.mercateo.com/c0/e2d28082af85416a8a9b3a6f8a237259/pdf/K43_803_EN.pdf\n- Ameco: Rod end BR DIN ISO 12240-4 (DIN 648) series K, internal thread M8, right hand: d 8, B 12, C1 9, d2 24, d3 12.5, d4 16, h1 36, l3 16 — web — Publisher's page; dimensions are facts — https://eshop.ameco.cz/products/en/1126/2229/2233/g1688/63240800\n- Schaeffler (via Misumi data sheet): GAR10-DO male rod end, DIN ISO 12240-4 dimension series E: d 10, B 9, dK 16, d2 29, h 48, C1 7, l1 26, l2 62.5 — web — Publisher's page; dimensions are facts — https://uk.misumi-ec.com/pdf/ds/INA1/INA1_F0002780235_EN.pdf\n- McMaster-Carr: Ball joint rod ends (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/ball-joint-rod-ends\n\nNo true-size file yet: the published figures do not fix the whole shape; a measured scan is planned.\nAPI: https://xemstudio.com/api/geometry?object=rod-ends-din-iso-12240-4\n",
 "sources": [
  {
   "publisher": "Maedler (Mercateo data sheet K43_803)",
   "title": "Rod ends DIN ISO 12240-4 series K, male (AR / AL) and female (IR / IL), d 5 to 20: B, C1, d1, d2, h, l, thread",
   "url": "https://static.mercateo.com/c0/e2d28082af85416a8a9b3a6f8a237259/pdf/K43_803_EN.pdf",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Ameco",
   "title": "Rod end BR DIN ISO 12240-4 (DIN 648) series K, internal thread M8, right hand: d 8, B 12, C1 9, d2 24, d3 12.5, d4 16, h1 36, l3 16",
   "url": "https://eshop.ameco.cz/products/en/1126/2229/2233/g1688/63240800",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Schaeffler (via Misumi data sheet)",
   "title": "GAR10-DO male rod end, DIN ISO 12240-4 dimension series E: d 10, B 9, dK 16, d2 29, h 48, C1 7, l1 26, l2 62.5",
   "url": "https://uk.misumi-ec.com/pdf/ds/INA1/INA1_F0002780235_EN.pdf",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "McMaster-Carr",
   "title": "Ball joint rod ends (free STEP/IGES per part, for your own design use; no redistribution)",
   "url": "https://www.mcmaster.com/ball-joint-rod-ends",
   "formats": [
    "STEP",
    "IGES",
    "PDF"
   ],
   "license": "McMaster-Carr site terms: personal design use, no redistribution",
   "license_verified": false,
   "hosted": false
  }
 ],
 "xem": {
  "status": "not-scanned",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "spherical-plain-bearings-ge-e-series",
  "clevis-pins",
  "ball-bearings-metric",
  "pillow-block-kp08",
  "shaft-couplers",
  "t8-lead-screw"
 ],
 "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": [],
 "faq": [
  {
   "q": "What are the dimensions of an M8 rod end?",
   "a": "Series K 8: bore 8, B 12, C1 9, d1 10.4, d2 24; female d3 12.5, d4 16, h1 36, l 16; male h 42, l 25; thread M8."
  },
  {
   "q": "What is the difference between male and female rod ends?",
   "a": "Male has a threaded stud, female has a threaded hole: the head and bore are the same, the shank differs."
  },
  {
   "q": "What are the dimensions of an M10 rod end?",
   "a": "Series K 10: bore 10, B 14, C1 10.5, d1 12.9, d2 28; female h1 43, l 20; male h 48, l 29; thread M10."
  },
  {
   "q": "What is series K in DIN ISO 12240-4?",
   "a": "A dimension series of rod ends in the standard; the table here is series K, with one series E male part (Schaeffler GAR10) listed for comparison."
  }
 ],
 "files_license": null,
 "offers": [],
 "markdown": "https://xemstudio.com/objects/rod-ends-din-iso-12240-4/index.md"
}