{ "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-washers-din-436", "name": "Square washers for timber, DIN 436: M10–M36 side length, hole, thickness", "kind": "standard", "category": "Hardware", "group": "Fasteners", "year": null, "question": "What are the DIN 436 square washer dimensions (side, hole, thickness) for M10 to M36?", "tags": [ "din 436", "square washer", "timber washer", "square plate washer", "wood construction washer" ], "aliases": [ "din 436 dimensions", "square washer m12 40 mm", "timber square washer m16", "square washer for wood m20", "din 436 m24 thickness" ], "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-washers-din-436/", "sheet_txt": "https://xemstudio.com/objects/square-washers-din-436/sheet.txt", "sheet": { "basis": "Westfield Fasteners' DIN 436 table (d, a, s), cross-checked against fasten.it and spot checks of Kramp, Würth, Cromwell, SWG and Keller & Kalmbach listings", "overall_mm": { "length": null, "width": null, "height": null }, "notes": [ "Columns: thread, hole d, side length a, thickness s. Values are from the 1990 edition; the 2024 revision is paywalled and was not checked.", "Edges drawn sharp." ], "table": { "columns": [ "thread", "d", "a", "s" ], "rows": [ [ "M10", "11", "30", "3" ], [ "M12", "13.5", "40", "4" ], [ "M16", "17.5", "50", "5" ], [ "M20", "22", "60", "5" ], [ "M22", "24", "70", "6" ], [ "M24", "26", "80", "6" ], [ "M27", "30", "90", "6" ], [ "M30", "33", "95", "6" ], [ "M33", "36", "100", "6" ], [ "M36", "39", "110", "8" ] ] } }, "sheet_text": "Square washers for timber, DIN 436: M10–M36 side length, hole, thickness — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/square-washers-din-436/ (sheet CC BY 4.0)\nBasis: Westfield Fasteners' DIN 436 table (d, a, s), cross-checked against fasten.it and spot checks of Kramp, Würth, Cromwell, SWG and Keller & Kalmbach listings\nCatalog version: 2026-10-20\n\nSizes: see table below\n- Columns: thread, hole d, side length a, thickness s. Values are from the 1990 edition; the 2024 revision is paywalled and was not checked.\n- Edges drawn sharp.\n\nthread d a s\nM10 11 30 3\nM12 13.5 40 4\nM16 17.5 50 5\nM20 22 60 5\nM22 24 70 6\nM24 26 80 6\nM27 30 90 6\nM30 33 95 6\nM33 36 100 6\nM36 39 110 8\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Westfield Fasteners: DIN 436 square plate flat washers: d1, a, h — web — Publisher's page; dimensions are facts — https://www.westfieldfasteners.co.uk/Standards/Washer-SqPlate-M.html\n- fasten.it: DIN 436 square washers for wood constructions (05/1990) — web — Publisher's page; dimensions are facts — https://fasten.it/en/norms/norm/din_436\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 10 parts): https://xemstudio.com/files/hardware/square-washers-din-436/index.json\nAPI: https://xemstudio.com/api/geometry?object=square-washers-din-436\n", "sources": [ { "publisher": "Westfield Fasteners", "title": "DIN 436 square plate flat washers: d1, a, h", "url": "https://www.westfieldfasteners.co.uk/Standards/Washer-SqPlate-M.html", "formats": [ "web" ], "license": "Publisher's page; dimensions are facts", "license_verified": true, "hosted": false }, { "publisher": "fasten.it", "title": "DIN 436 square washers for wood constructions (05/1990)", "url": "https://fasten.it/en/norms/norm/din_436", "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": [ "round-washers-timber-din-440-r", "large-washers-din-9021-iso-7093", "carriage-bolts-asme-b18-5", "lag-screws-hex-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": "hole", "exact": "d (M12 13.5, M24 26)", "mates": "bolt, coach screw or threaded rod of the listed thread", "fit": "designed", "files": "all" }, { "feature": "bearing face", "exact": "a × a (M12 40, M24 80)", "mates": "timber surface", "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 M12 square washer?", "a": "DIN 436 M12: 40 × 40 mm, 4 mm thick, 13.5 mm hole." }, { "q": "Did the 2024 edition of DIN 436 change the sizes?", "a": "No. DIN says the 2024 edition is an editorial revision of the 1990 one, so the dimensions here still apply." } ], "files_license": null, "offers": [ { "file": "din436-m10", "formats": [ "step", "stl" ], "price_usd": 0, "license": "CC BY 4.0 (Xem Studio)", "step": "https://xemstudio.com/files/hardware/square-washers-din-436/din436-m10.step", "stl": "https://xemstudio.com/files/hardware/square-washers-din-436/din436-m10.stl", "note": "DIN 436 M10: 30 × 30 × 3, hole 11" }, { "file": "din436-m12", "formats": [ "step", "stl" ], "price_usd": 0, "license": "CC BY 4.0 (Xem Studio)", "step": "https://xemstudio.com/files/hardware/square-washers-din-436/din436-m12.step", "stl": "https://xemstudio.com/files/hardware/square-washers-din-436/din436-m12.stl", "note": "DIN 436 M12: 40 × 40 × 4, hole 13.5" }, { "file": "din436-m16", "formats": [ "step", "stl" ], "price_usd": 0, "license": "CC BY 4.0 (Xem Studio)", "step": "https://xemstudio.com/files/hardware/square-washers-din-436/din436-m16.step", "stl": "https://xemstudio.com/files/hardware/square-washers-din-436/din436-m16.stl", "note": "DIN 436 M16: 50 × 50 × 5, hole 17.5" }, { "file": "din436-m20", "formats": [ "step", "stl" ], "price_usd": 0, "license": "CC BY 4.0 (Xem Studio)", "step": "https://xemstudio.com/files/hardware/square-washers-din-436/din436-m20.step", "stl": "https://xemstudio.com/files/hardware/square-washers-din-436/din436-m20.stl", "note": "DIN 436 M20: 60 × 60 × 5, hole 22" }, { "file": "din436-m22", "formats": [ "step", "stl" ], "price_usd": 0, "license": "CC BY 4.0 (Xem Studio)", "step": "https://xemstudio.com/files/hardware/square-washers-din-436/din436-m22.step", "stl": "https://xemstudio.com/files/hardware/square-washers-din-436/din436-m22.stl", "note": "DIN 436 M22: 70 × 70 × 6, hole 24" }, { "file": "din436-m24", "formats": [ "step", "stl" ], "price_usd": 0, "license": "CC BY 4.0 (Xem Studio)", "step": "https://xemstudio.com/files/hardware/square-washers-din-436/din436-m24.step", "stl": "https://xemstudio.com/files/hardware/square-washers-din-436/din436-m24.stl", "note": "DIN 436 M24: 80 × 80 × 6, hole 26" }, { "file": "din436-m27", "formats": [ "step", "stl" ], "price_usd": 0, "license": "CC BY 4.0 (Xem Studio)", "step": "https://xemstudio.com/files/hardware/square-washers-din-436/din436-m27.step", "stl": "https://xemstudio.com/files/hardware/square-washers-din-436/din436-m27.stl", "note": "DIN 436 M27: 90 × 90 × 6, hole 30" }, { "file": "din436-m30", "formats": [ "step", "stl" ], "price_usd": 0, "license": "CC BY 4.0 (Xem Studio)", "step": "https://xemstudio.com/files/hardware/square-washers-din-436/din436-m30.step", "stl": "https://xemstudio.com/files/hardware/square-washers-din-436/din436-m30.stl", "note": "DIN 436 M30: 95 × 95 × 6, hole 33" }, { "file": "din436-m33", "formats": [ "step", "stl" ], "price_usd": 0, "license": "CC BY 4.0 (Xem Studio)", "step": "https://xemstudio.com/files/hardware/square-washers-din-436/din436-m33.step", "stl": "https://xemstudio.com/files/hardware/square-washers-din-436/din436-m33.stl", "note": "DIN 436 M33: 100 × 100 × 6, hole 36" }, { "file": "din436-m36", "formats": [ "step", "stl" ], "price_usd": 0, "license": "CC BY 4.0 (Xem Studio)", "step": "https://xemstudio.com/files/hardware/square-washers-din-436/din436-m36.step", "stl": "https://xemstudio.com/files/hardware/square-washers-din-436/din436-m36.stl", "note": "DIN 436 M36: 110 × 110 × 8, hole 39" } ], "markdown": "https://xemstudio.com/objects/square-washers-din-436/index.md" }