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Conical spring washers DIN 6796, M2–M125: bore, outside diameter, thickness, height, load to flat + 10 cone models
What are the dimensions of a DIN 6796 conical spring washer (M6, M8, M10), and what is the difference from DIN 2093 disc springs? · Standard part · basis: fasten.it's DIN 6796 table (08/2009 edition, M2 to M125) checked against Westfield Fasteners (M2 to M30, with tolerance classes) and a Böllhoff stainless data sheet (M3 to M16); ten revolved cones as files
Also called: din 6796 dimensions, din 6796 m8 washer, conical spring washer m6, din 6796 m10 18 mm, conical washer 8.4 mm, din 6796 vs din 2093, din 6796 m5 height, conical spring washer size chart, din 6796 m12 load, din 6796 m3 thickness, belleville washer m8 6796, din 6796 stl step
Exact dimensions. Every file is drawn at true size with no tolerance added. The holes and pins that meet another part are listed below under Mating features, with the fit each joint needs; open those by your process's clearance before making the part. Mating features
- length
- 56.0 mm
- width
- 56.0 mm
- height
- 7.75 mm
Notes
- Millimetres. DIN 6796 conical spring washers for bolted connections (the 08/2009 edition supersedes 10/1987). fasten.it prints the bore as 'd' and the outside diameter as 'd1' without defining them; Westfield names the bore d1 (class H14) and the OD d2 (class h14). Both give the same numbers. Columns here: bore, OD, thickness s, free height h min / max, approximate load to flat (N, fasten.it only; Westfield's page has no force column) and approximate mass in kg per 1000 pieces.
- Agreement: fasten.it and Westfield give identical bore, OD and h for M2 to M30; Böllhoff's stainless sheet agrees on d1, d2, s and h for M3, 3.5, 4, 5, 6, 8, 10, 12, 14 and 16. One difference: for M7 fasten.it prints s 1.8, Westfield 1.75 (M7 has no file). fasten.it prints a 37.2 bore for M36, which Westfield's page does not reach. The load column is as printed by fasten.it and is not a spring rate.
- DIN 6796 is a single-cone washer for taking up play and keeping preload in bolted joints; it is not the DIN 2093 Belleville disc spring (see disc-springs-din-2093, which has load-deflection series). Wave forms: wave-spring-washers-din-137.
- Files: a plain revolved cone with the published bore, OD and thickness s, drawn at the maximum free height h (inner edge up). h min / h max are printed as a range, so the file shows the upper limit only; no chamfers, radii or edge rounding are published as numbers. Böllhoff (maker) sells these with CAD per article; linked, not copied.
Conical spring washers DIN 6796, M2–M125: bore, outside diameter… size chart
| size | bore d1, H14 (mm) | OD d2, h14 (mm) | thickness s (mm) | height h min / max (mm) | load to flat (N, fasten.it) | mass (kg / 1000, fasten.it) | note |
|---|---|---|---|---|---|---|---|
| M2 | 2.2 | 5 | 0.4 | 0.5 / 0.6 | 628 | 0.05 | |
| M2.5 | 2.7 | 6 | 0.5 | 0.61 / 0.72 | 946 | 0.09 | |
| M3 | 3.2 | 7 | 0.6 | 0.72 / 0.85 | 1320 | 0.14 | |
| M3.5 | 3.7 | 8 | 0.8 | 0.92 / 1.06 | 2410 | 0.25 | |
| M4 | 4.3 | 9 | 1 | 1.12 / 1.3 | 3770 | 0.38 | |
| M5 | 5.3 | 11 | 1.2 | 1.35 / 1.55 | 5480 | 0.69 | |
| M6 | 6.4 | 14 | 1.5 | 1.7 / 2 | 8590 | 1.43 | |
| M7 | 7.4 | 17 | 1.8 | 2 / 2.3 | 11300 | 2.53 | Westfield prints s 1.75 (fasten.it 1.8) |
| M8 | 8.4 | 18 | 2 | 2.24 / 2.6 | 14900 | 3.13 | |
| M10 | 10.5 | 23 | 2.5 | 2.8 / 3.2 | 22100 | 6.45 | |
| M12 | 13 | 29 | 3 | 3.43 / 3.95 | 34100 | 12.4 | |
| M14 | 15 | 35 | 3.5 | 4.04 / 4.65 | 46000 | 21.6 | |
| M16 | 17 | 39 | 4 | 4.58 / 5.25 | 59700 | 30.4 | |
| M18 | 19 | 42 | 4.5 | 5.08 / 5.8 | 74400 | 38.9 | |
| M20 | 21 | 45 | 5 | 5.6 / 6.4 | 93200 | 48.8 | |
| M22 | 23 | 49 | 5.5 | 6.15 / 7.05 | 113700 | 63.5 | |
| M24 | 25 | 56 | 6 | 6.77 / 7.75 | 131000 | 92.9 | |
| M27 | 28 | 60 | 6.5 | 7.3 / 8.35 | 154000 | 113 | |
| M30 | 31 | 70 | 7 | 8 / 9.2 | 172000 | 170 | |
| M33 | 34 | 76 | 7.5 | 8.5 / 10 | 226000 | 214 | |
| M36 | 37.2 | 83 | 8 | 9.2 / 10.5 | 276000 | 271 | |
| M42 | 43.5 | 96 | 8.5 | 10.5 / 12 | 290000 | 384 | |
| M48 | 49.5 | 110 | 9 | 11 / 12.5 | 261000 | 535 | |
| M56 | 58 | 128 | 9.5 | 12 / 13.5 | 260000 | 762 | |
| M64 | 66 | 136 | 10 | 12.8 / 14 | 277000 | 871 | |
| M72 | 74 | 145 | 10.5 | 13 / 15 | 327000 | 1007 | |
| M90 | 92.5 | 160 | 11 | 14 / 16 | 378000 | 1155 | |
| M100 | 102.5 | 180 | 11.5 | 15 / 17 | 370000 | 1552 | |
| M125 | 128 | 220 | 12 | 16.5 / 19 | 365000 | 2367 |
Mating features
Drawn at the exact size. Open press, slide, run and socket features by your process's clearance (tolerances by process); leave designed gaps and clamp fits as drawn.
| feature | exact | mates with | fit | files |
|---|---|---|---|---|
| bore | Ø3.2 (M3), 4.3, 5.3, 6.4 (M6), 8.4 (M8), 10.5 (M10), 13 (M12), 17 (M16), 21 (M20), 25 (M24) mm, tolerance class H14 | bolt or screw of the same thread, passing through the washer | slide | conical-washer-din-6796-* |
| outside diameter | Ø7 (M3), 9, 11, 14 (M6), 18 (M8), 23 (M10), 29 (M12), 39 (M16), 45 (M20), 56 (M24) mm, tolerance class h14 | counterbore or seat under the head or nut | designed | conical-washer-din-6796-* |
| overall height h (free, drawn at h max) | h max 0.85 (M3) to 7.75 (M24); h min 0.72 to 6.77 mm | clearance for the washer to flatten under load (flat height = s) | designed | conical-washer-din-6796-* |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| fasten.it | DIN 6796 conical spring washers for bolted connections, 08/2009: thread size, bore, OD, thickness s, height h min / max, load to flat, mass (M2 to M125) | web | Reference page; numbers only. The page does not define its column letters |
| Westfield Fasteners | DIN 6796 conical spring washers: d1 (H14), d2 (h14), s, h max / min (M2 to M30) | web | Publisher's page; dimensions are facts |
| Böllhoff (eshop PDF) | DIN 6796 stainless A2 conical spring washers: d1, d2, h min / max, s (M3 to M16) | web | Maker data sheet; numbers only |
| Böllhoff (eshop) | Conical spring washers for threaded connections (maker page, CAD downloads per article) | web, CAD per article | Maker / distributor page; dimensions are facts verify |
Free files
★ Free files 10 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json
| conical-washer-din-6796-m3 | DIN 6796 M3 conical spring washer: bore Ø3.2, OD Ø7, thickness 0.6, overall height h 0.85 mm (the maximum of h 0.72 to 0.85); a plain cone, inner edge up, no chamfers or radii | STEP · STL |
| conical-washer-din-6796-m4 | DIN 6796 M4 conical spring washer: bore Ø4.3, OD Ø9, thickness 1, overall height h 1.3 mm (the maximum of h 1.12 to 1.3); a plain cone, inner edge up, no chamfers or radii | STEP · STL |
| conical-washer-din-6796-m5 | DIN 6796 M5 conical spring washer: bore Ø5.3, OD Ø11, thickness 1.2, overall height h 1.55 mm (the maximum of h 1.35 to 1.55); a plain cone, inner edge up, no chamfers or radii | STEP · STL |
| conical-washer-din-6796-m6 | DIN 6796 M6 conical spring washer: bore Ø6.4, OD Ø14, thickness 1.5, overall height h 2 mm (the maximum of h 1.7 to 2); a plain cone, inner edge up, no chamfers or radii | STEP · STL |
| conical-washer-din-6796-m8 | DIN 6796 M8 conical spring washer: bore Ø8.4, OD Ø18, thickness 2, overall height h 2.6 mm (the maximum of h 2.24 to 2.6); a plain cone, inner edge up, no chamfers or radii | STEP · STL |
| conical-washer-din-6796-m10 | DIN 6796 M10 conical spring washer: bore Ø10.5, OD Ø23, thickness 2.5, overall height h 3.2 mm (the maximum of h 2.8 to 3.2); a plain cone, inner edge up, no chamfers or radii | STEP · STL |
| conical-washer-din-6796-m12 | DIN 6796 M12 conical spring washer: bore Ø13, OD Ø29, thickness 3, overall height h 3.95 mm (the maximum of h 3.43 to 3.95); a plain cone, inner edge up, no chamfers or radii | STEP · STL |
| conical-washer-din-6796-m16 | DIN 6796 M16 conical spring washer: bore Ø17, OD Ø39, thickness 4, overall height h 5.25 mm (the maximum of h 4.58 to 5.25); a plain cone, inner edge up, no chamfers or radii | STEP · STL |
| conical-washer-din-6796-m20 | DIN 6796 M20 conical spring washer: bore Ø21, OD Ø45, thickness 5, overall height h 6.4 mm (the maximum of h 5.6 to 6.4); a plain cone, inner edge up, no chamfers or radii | STEP · STL |
| conical-washer-din-6796-m24 | DIN 6796 M24 conical spring washer: bore Ø25, OD Ø56, thickness 6, overall height h 7.75 mm (the maximum of h 6.77 to 7.75); a plain cone, inner edge up, no chamfers or radii | STEP · STL |
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Questions
What are the dimensions of a DIN 6796 M8 conical washer?
Bore 8.4 mm, OD 18 mm, thickness 2 mm, free height 2.24 to 2.6 mm (fasten.it and Westfield); load to flat about 14 900 N (fasten.it).
How is DIN 6796 different from DIN 2093?
DIN 6796 is a stiff conical washer for bolted joints with a bore sized to the bolt; DIN 2093 is a Belleville disc spring series with defined load-deflection curves.
What tolerance class is the bore of a DIN 6796 washer?
H14 for the bore and h14 for the OD (Westfield).