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Washers for clamping fixtures, DIN 6340: M6–M30 bore, outside diameter, thickness

What bore, outside diameter and thickness does a DIN 6340 washer for clamping fixtures have for M6 to M30? · Standard part · basis: Halder and norelem DIN 6340 tables (d1, d2, h), cross-checked against Ganter, Würth, Kramp and AMF / Hoffmann; every row agrees in at least three sources

Also called: din 6340 dimensions, fixture washer m12 35 mm, clamping washer m10, din 6340 m16 thickness, hardened jig washer m8

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

sizes

8 in table

Notes

• Columns: thread, bore d1, outside diameter d2, thickness h (edition 1987-04). Hardened and ground in practice.
• Manufacturers disagree on whether the edges are broken and none gives a size, so edges are drawn sharp.

Washers for clamping fixtures, DIN 6340: M6–M30 bore, outside… size chart

thread	d1	d2	h
M6	6.4	17	3
M8	8.4	23	4
M10	10.5	28	4
M12	13	35	5
M16	17	45	6
M20	21	50	6
M24	25	60	8
M30	31	68	10

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	d1 (M12 13, M20 21)	stud or clamping bolt of the listed thread	designed	all
faces	Ø d2 × h (M12 35 × 5)	clamp strap and collar nut (DIN 6331)	designed	all

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

Halder	Washers DIN 6340, EH 23060	web	Publisher's page; dimensions are facts
norelem (via Marek)	Washers for clamping fixtures DIN 6340 (07320)	web	Publisher's page; dimensions are facts
Kramp	Washer M30 × 68 × 10 DIN 6340	web	Publisher's page; dimensions are facts

Free files

★ Free files 8 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json

din6340-m6	DIN 6340 M6: 6.4 × Ø17 × 3	STEP · STL
din6340-m8	DIN 6340 M8: 8.4 × Ø23 × 4	STEP · STL
din6340-m10	DIN 6340 M10: 10.5 × Ø28 × 4	STEP · STL
din6340-m12	DIN 6340 M12: 13 × Ø35 × 5	STEP · STL
din6340-m16	DIN 6340 M16: 17 × Ø45 × 6	STEP · STL
din6340-m20	DIN 6340 M20: 21 × Ø50 × 6	STEP · STL
din6340-m24	DIN 6340 M24: 25 × Ø60 × 8	STEP · STL
din6340-m30	DIN 6340 M30: 31 × Ø68 × 10	STEP · STL

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Plain text: sheet.txt · JSON: /api/geometry?object=washers-clamping-fixtures-din-6340

Fits with

Free

Hexagon nuts with collar, 1.5 d high, DIN 6331: M6–M36 across flats, collar diameter, height9 sizes★ 9 filesFree

T-slot nuts, DIN 508: M4–M22 for 5–24 mm T-slots, neck width, base, height11 sizes★ 11 filesFree

Spherical washers, DIN 6319 form C: M5–M48 bore, outside diameter, sphere radius, height13 sizes★ 13 filesFree

Thick washers, DIN 7349: M3–M30 bore, outside diameter, thickness14 sizes★ 14 files

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