{
 "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": "square-thin-nuts-din-562",
 "name": "Square thin nuts, DIN 562: M1.6–M10 width across flats and height",
 "kind": "standard",
 "category": "Hardware",
 "group": "Fasteners",
 "year": null,
 "question": "What are the DIN 562 thin square nut dimensions, for example the M3 or M5 width and height?",
 "tags": [
  "din 562",
  "square nut",
  "thin square nut",
  "t-slot extrusion nut",
  "fastener"
 ],
 "aliases": [
  "din 562 dimensions",
  "m3 square nut 5.5 mm",
  "m4 thin square nut size",
  "m5 square nut 8 mm",
  "square nut for 2020 extrusion",
  "din 562 m6 height"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 10,
 "url": "https://xemstudio.com/objects/square-thin-nuts-din-562/",
 "sheet_txt": "https://xemstudio.com/objects/square-thin-nuts-din-562/sheet.txt",
 "sheet": {
  "basis": "fasten.it's DIN 562 table (05/2013 edition), cross-checked against JC Fasteners' DIN 562 sheet and CDE Fasteners' DIN 562 data",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "Columns: thread d, width across flats s (max = nominal), height m (max = nominal). The 2013 edition gives s = 16 for M10 (the 1987 edition had 17).",
   "Files: square block with the thread as a plain bore at the major diameter, as for the other nuts on Xem. Real nuts may have slightly broken corners (e min is about 1.26 s)."
  ],
  "table": {
   "columns": [
    "thread",
    "s",
    "m"
   ],
   "rows": [
    [
     "M1.6",
     "3.2",
     "1.0"
    ],
    [
     "M2",
     "4",
     "1.2"
    ],
    [
     "M2.5",
     "5",
     "1.6"
    ],
    [
     "M3",
     "5.5",
     "1.8"
    ],
    [
     "M3.5",
     "6",
     "2.0"
    ],
    [
     "M4",
     "7",
     "2.2"
    ],
    [
     "M5",
     "8",
     "2.7"
    ],
    [
     "M6",
     "10",
     "3.2"
    ],
    [
     "M8",
     "13",
     "4.0"
    ],
    [
     "M10",
     "16",
     "5.0"
    ]
   ]
  }
 },
 "sheet_text": "Square thin nuts, DIN 562: M1.6–M10 width across flats and height — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/square-thin-nuts-din-562/  (sheet CC BY 4.0)\nBasis: fasten.it's DIN 562 table (05/2013 edition), cross-checked against JC Fasteners' DIN 562 sheet and CDE Fasteners' DIN 562 data\nCatalog version: 2026-10-20\n\nSizes: see table below\n- Columns: thread d, width across flats s (max = nominal), height m (max = nominal). The 2013 edition gives s = 16 for M10 (the 1987 edition had 17).\n- Files: square block with the thread as a plain bore at the major diameter, as for the other nuts on Xem. Real nuts may have slightly broken corners (e min is about 1.26 s).\n\nthread  s  m\nM1.6  3.2  1.0\nM2  4  1.2\nM2.5  5  1.6\nM3  5.5  1.8\nM3.5  6  2.0\nM4  7  2.2\nM5  8  2.7\nM6  10  3.2\nM8  13  4.0\nM10  16  5.0\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- fasten.it: DIN 562 square thin nuts (05/2013): s, m, e — web — Publisher's page; dimensions are facts — https://fasten.it/norms/norm/din_562\n- CDE Fasteners: DIN 562 square thin nuts: width across flats and thickness — web — Publisher's page; dimensions are facts — https://cdefasteners.com/sites/default/files/product-specs/metdin562.pdf\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 10 parts): https://xemstudio.com/files/hardware/square-thin-nuts-din-562/index.json\nAPI: https://xemstudio.com/api/geometry?object=square-thin-nuts-din-562\n",
 "sources": [
  {
   "publisher": "fasten.it",
   "title": "DIN 562 square thin nuts (05/2013): s, m, e",
   "url": "https://fasten.it/norms/norm/din_562",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "CDE Fasteners",
   "title": "DIN 562 square thin nuts: width across flats and thickness",
   "url": "https://cdefasteners.com/sites/default/files/product-specs/metdin562.pdf",
   "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": [
  "hex-nuts-metric",
  "nylon-insert-lock-nuts-iso-7040-din-985",
  "flange-nuts-din-6923",
  "socket-head-cap-screws-metric"
 ],
 "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": "square body",
   "exact": "s × s × m: 3.2 × 3.2 × 1 (M1.6) to 16 × 16 × 5 (M10); M3 5.5 × 1.8",
   "mates": "nut-trap pocket or slot of the same size",
   "fit": "socket",
   "files": "all"
  },
  {
   "feature": "thread (plain bore at the major Ø)",
   "exact": "d: M1.6 to M10",
   "mates": "screw of the same thread",
   "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": "How big is an M3 thin square nut?",
   "a": "DIN 562 M3: 5.5 mm square, 1.8 mm thick."
  },
  {
   "q": "What size nut trap fits an M10 DIN 562 square nut?",
   "a": "The nut is 16 mm square and 5 mm thick; draw the pocket at 16 × 16 × 5 and add your process allowance."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "din562-m1p6",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/square-thin-nuts-din-562/din562-m1p6.step",
   "stl": "https://xemstudio.com/files/hardware/square-thin-nuts-din-562/din562-m1p6.stl",
   "note": "DIN 562 M1.6: 3.2 square × 1.0, thread as Ø1.6 bore"
  },
  {
   "file": "din562-m2",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/square-thin-nuts-din-562/din562-m2.step",
   "stl": "https://xemstudio.com/files/hardware/square-thin-nuts-din-562/din562-m2.stl",
   "note": "DIN 562 M2: 4 square × 1.2, thread as Ø2 bore"
  },
  {
   "file": "din562-m2p5",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/square-thin-nuts-din-562/din562-m2p5.step",
   "stl": "https://xemstudio.com/files/hardware/square-thin-nuts-din-562/din562-m2p5.stl",
   "note": "DIN 562 M2.5: 5 square × 1.6, thread as Ø2.5 bore"
  },
  {
   "file": "din562-m3",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/square-thin-nuts-din-562/din562-m3.step",
   "stl": "https://xemstudio.com/files/hardware/square-thin-nuts-din-562/din562-m3.stl",
   "note": "DIN 562 M3: 5.5 square × 1.8, thread as Ø3 bore"
  },
  {
   "file": "din562-m3p5",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/square-thin-nuts-din-562/din562-m3p5.step",
   "stl": "https://xemstudio.com/files/hardware/square-thin-nuts-din-562/din562-m3p5.stl",
   "note": "DIN 562 M3.5: 6 square × 2.0, thread as Ø3.5 bore"
  },
  {
   "file": "din562-m4",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/square-thin-nuts-din-562/din562-m4.step",
   "stl": "https://xemstudio.com/files/hardware/square-thin-nuts-din-562/din562-m4.stl",
   "note": "DIN 562 M4: 7 square × 2.2, thread as Ø4 bore"
  },
  {
   "file": "din562-m5",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/square-thin-nuts-din-562/din562-m5.step",
   "stl": "https://xemstudio.com/files/hardware/square-thin-nuts-din-562/din562-m5.stl",
   "note": "DIN 562 M5: 8 square × 2.7, thread as Ø5 bore"
  },
  {
   "file": "din562-m6",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/square-thin-nuts-din-562/din562-m6.step",
   "stl": "https://xemstudio.com/files/hardware/square-thin-nuts-din-562/din562-m6.stl",
   "note": "DIN 562 M6: 10 square × 3.2, thread as Ø6 bore"
  },
  {
   "file": "din562-m8",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/square-thin-nuts-din-562/din562-m8.step",
   "stl": "https://xemstudio.com/files/hardware/square-thin-nuts-din-562/din562-m8.stl",
   "note": "DIN 562 M8: 13 square × 4.0, thread as Ø8 bore"
  },
  {
   "file": "din562-m10",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/square-thin-nuts-din-562/din562-m10.step",
   "stl": "https://xemstudio.com/files/hardware/square-thin-nuts-din-562/din562-m10.stl",
   "note": "DIN 562 M10: 16 square × 5.0, thread as Ø10 bore"
  }
 ],
 "markdown": "https://xemstudio.com/objects/square-thin-nuts-din-562/index.md"
}