{
 "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": "two-hole-nuts-din-547",
 "name": "Two-hole nuts, DIN 547: M3–M10 outside diameter, height, pin-hole size, spacing and depth",
 "kind": "standard",
 "category": "Hardware",
 "group": "Fasteners",
 "year": null,
 "question": "What are the DIN 547 two-hole nut dimensions (outside diameter, height, pin holes and spacing) for M3 to M10?",
 "tags": [
  "din 547",
  "two hole nut",
  "spanner nut",
  "pin spanner nut",
  "round nut with drilled holes",
  "face spanner"
 ],
 "aliases": [
  "din 547 dimensions",
  "two hole nut m6",
  "spanner nut m8 hole spacing",
  "pin spanner nut m5",
  "din 547 m10 hole depth"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 6,
 "url": "https://xemstudio.com/objects/two-hole-nuts-din-547/",
 "sheet_txt": "https://xemstudio.com/objects/two-hole-nuts-din-547/sheet.txt",
 "sheet": {
  "basis": "fasteners.eu DIN 547 table (08/2006: d1, m, d2, e, t), cross-checked against fasten.it and spot checks of Aspen and AMF listings",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "Columns: thread, outside diameter d1, height m, pin-hole diameter d2, pin-hole centre distance e, pin-hole depth t (min–max). The model uses the midpoint of t.",
   "Thread drawn as a plain bore at the major diameter."
  ],
  "table": {
   "columns": [
    "thread",
    "d1",
    "m",
    "d2",
    "e",
    "t min",
    "t max"
   ],
   "rows": [
    [
     "M3",
     "8",
     "2.5",
     "1.5",
     "5.5",
     "1.3",
     "1.7"
    ],
    [
     "M4",
     "10",
     "3.5",
     "1.5",
     "7",
     "1.8",
     "2.2"
    ],
    [
     "M5",
     "12",
     "4.2",
     "2",
     "8",
     "2.3",
     "2.7"
    ],
    [
     "M6",
     "14",
     "5",
     "2.5",
     "10",
     "2.8",
     "3.2"
    ],
    [
     "M8",
     "18",
     "6.5",
     "3",
     "13",
     "3.3",
     "3.8"
    ],
    [
     "M10",
     "22",
     "8",
     "3.5",
     "15",
     "3.8",
     "4.3"
    ]
   ]
  }
 },
 "sheet_text": "Two-hole nuts, DIN 547: M3–M10 outside diameter, height, pin-hole size, spacing and depth — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/two-hole-nuts-din-547/  (sheet CC BY 4.0)\nBasis: fasteners.eu DIN 547 table (08/2006: d1, m, d2, e, t), cross-checked against fasten.it and spot checks of Aspen and AMF listings\nCatalog version: 2026-10-20\n\nSizes: see table below\n- Columns: thread, outside diameter d1, height m, pin-hole diameter d2, pin-hole centre distance e, pin-hole depth t (min–max). The model uses the midpoint of t.\n- Thread drawn as a plain bore at the major diameter.\n\nthread  d1  m  d2  e  t min  t max\nM3  8  2.5  1.5  5.5  1.3  1.7\nM4  10  3.5  1.5  7  1.8  2.2\nM5  12  4.2  2  8  2.3  2.7\nM6  14  5  2.5  10  2.8  3.2\nM8  18  6.5  3  13  3.3  3.8\nM10  22  8  3.5  15  3.8  4.3\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- fasteners.eu: DIN 547 round nuts with drilled holes in one face: m, dh, e, t — web — Publisher's page; dimensions are facts — https://www.fasteners.eu/standards/DIN/547/\n- fasten.it: DIN 547 round nuts with drilled holes in one face (08/2006) — web — Publisher's page; dimensions are facts — https://fasten.it/en/norms/norm/din_547\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 6 parts): https://xemstudio.com/files/hardware/two-hole-nuts-din-547/index.json\nAPI: https://xemstudio.com/api/geometry?object=two-hole-nuts-din-547\n",
 "sources": [
  {
   "publisher": "fasteners.eu",
   "title": "DIN 547 round nuts with drilled holes in one face: m, dh, e, t",
   "url": "https://www.fasteners.eu/standards/DIN/547/",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "fasten.it",
   "title": "DIN 547 round nuts with drilled holes in one face (08/2006)",
   "url": "https://fasten.it/en/norms/norm/din_547",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "slotted-round-nuts-din-546",
  "knurled-nuts-din-466-467",
  "hex-nuts-metric",
  "bearing-locknuts-km-din-981"
 ],
 "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": "thread (plain bore at the major Ø)",
   "exact": "M3 to M10",
   "mates": "ISO metric screw or stud of the same size",
   "fit": "designed",
   "files": "all"
  },
  {
   "feature": "2 pin holes in the top face",
   "exact": "d2 at spacing e (M6 Ø2.5 at 10, M10 Ø3.5 at 15)",
   "mates": "face (pin) spanner, DIN 3116",
   "fit": "designed",
   "files": "all"
  }
 ],
 "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 are the pin holes on an M6 two-hole nut?",
   "a": "DIN 547 M6: two Ø2.5 mm holes 10 mm apart, about 2.8 to 3.2 mm deep, in a Ø14 × 5 mm nut."
  },
  {
   "q": "What tool fits a DIN 547 nut?",
   "a": "A face (pin) spanner whose pins match the hole diameter and spacing, e.g. DIN 3116."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "din547-m3",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/two-hole-nuts-din-547/din547-m3.step",
   "stl": "https://xemstudio.com/files/hardware/two-hole-nuts-din-547/din547-m3.stl",
   "note": "DIN 547 M3: Ø8 × 2.5, two Ø1.5 holes 5.5 apart, 1.5 deep"
  },
  {
   "file": "din547-m4",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/two-hole-nuts-din-547/din547-m4.step",
   "stl": "https://xemstudio.com/files/hardware/two-hole-nuts-din-547/din547-m4.stl",
   "note": "DIN 547 M4: Ø10 × 3.5, two Ø1.5 holes 7 apart, 2.0 deep"
  },
  {
   "file": "din547-m5",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/two-hole-nuts-din-547/din547-m5.step",
   "stl": "https://xemstudio.com/files/hardware/two-hole-nuts-din-547/din547-m5.stl",
   "note": "DIN 547 M5: Ø12 × 4.2, two Ø2 holes 8 apart, 2.5 deep"
  },
  {
   "file": "din547-m6",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/two-hole-nuts-din-547/din547-m6.step",
   "stl": "https://xemstudio.com/files/hardware/two-hole-nuts-din-547/din547-m6.stl",
   "note": "DIN 547 M6: Ø14 × 5, two Ø2.5 holes 10 apart, 3.0 deep"
  },
  {
   "file": "din547-m8",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/two-hole-nuts-din-547/din547-m8.step",
   "stl": "https://xemstudio.com/files/hardware/two-hole-nuts-din-547/din547-m8.stl",
   "note": "DIN 547 M8: Ø18 × 6.5, two Ø3 holes 13 apart, 3.55 deep"
  },
  {
   "file": "din547-m10",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/two-hole-nuts-din-547/din547-m10.step",
   "stl": "https://xemstudio.com/files/hardware/two-hole-nuts-din-547/din547-m10.stl",
   "note": "DIN 547 M10: Ø22 × 8, two Ø3.5 holes 15 apart, 4.05 deep"
  }
 ],
 "markdown": "https://xemstudio.com/objects/two-hole-nuts-din-547/index.md"
}