# Thick washers, DIN 7349: M3–M30 bore, outside diameter, thickness > What bore, outside diameter and thickness does a DIN 7349 thick washer have for M3 to M30? - Category: Hardware › Fasteners - Kind: Standard part - Basis: KIPP K1968 DIN 7349 table (D1, D2, H), cross-checked against norelem 07305-05 and Würth / Kramp DIN 7349 listings - Page: https://xemstudio.com/objects/thick-washers-din-7349/ · JSON: https://xemstudio.com/api/geometry?object=thick-washers-din-7349 · Plain text: https://xemstudio.com/objects/thick-washers-din-7349/sheet.txt - License: dimension sheet CC BY 4.0 (Xem Studio); files CC BY 4.0 or their publisher's license - Use in every chat: add https://xemstudio.com/mcp as a connector (https://xemstudio.com/use-with-ai/) **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. ## Notes - Columns: thread, bore d1, outside diameter d2, thickness s. KIPP and norelem list identical values (e.g. M8: 8.4 × 21 × 4). - Used under bolts with heavy-duty spring pins (DIN 1481). M18 is not drawn here. ## Mating features (exact size; open press / slide / run / socket by your process clearance, leave designed and clamp as drawn) | feature | exact | mates with | fit | files | |---|---|---|---|---| | bore | d1: 3.2 (M3) to 31 (M30); M8 8.4 | bolt shank; bolts with heavy spring pins DIN 1481 | designed | all | ## Sizes | thread | d1 | d2 | s | |---|---|---|---| | M3 | 3.2 | 9 | 1 | | M4 | 4.3 | 12 | 1.6 | | M5 | 5.3 | 15 | 2 | | M6 | 6.4 | 17 | 3 | | M8 | 8.4 | 21 | 4 | | M10 | 10.5 | 25 | 4 | | M12 | 13 | 30 | 6 | | M14 | 15 | 36 | 6 | | M16 | 17 | 40 | 6 | | M20 | 21 | 44 | 8 | | M22 | 23 | 50 | 8 | | M24 | 25 | 50 | 10 | | M27 | 28 | 60 | 10 | | M30 | 31 | 68 | 10 | ## Where the files are - KIPP (via Marek): [K1968 washers DIN 7349: D1, D2, H](https://www.marek.eu/data/katalogove-listy/kipp/K1968.pdf) — web — Publisher's page; dimensions are facts - norelem (via Marek): [07305-05 washers DIN 7349](https://www.marek.eu/data/katalogove-listy/norelem/07305-05.pdf) — web — Publisher's page; dimensions are facts ## Free STEP/STL (14 parts, CC BY 4.0, Xem Studio) Index: https://xemstudio.com/files/hardware/thick-washers-din-7349/index.json - din7349-m3: [STEP](https://xemstudio.com/files/hardware/thick-washers-din-7349/din7349-m3.step) · [STL](https://xemstudio.com/files/hardware/thick-washers-din-7349/din7349-m3.stl) — DIN 7349 M3: 3.2 × Ø9 × 1 - din7349-m4: [STEP](https://xemstudio.com/files/hardware/thick-washers-din-7349/din7349-m4.step) · [STL](https://xemstudio.com/files/hardware/thick-washers-din-7349/din7349-m4.stl) — DIN 7349 M4: 4.3 × Ø12 × 1.6 - din7349-m5: [STEP](https://xemstudio.com/files/hardware/thick-washers-din-7349/din7349-m5.step) · [STL](https://xemstudio.com/files/hardware/thick-washers-din-7349/din7349-m5.stl) — DIN 7349 M5: 5.3 × Ø15 × 2 - din7349-m6: [STEP](https://xemstudio.com/files/hardware/thick-washers-din-7349/din7349-m6.step) · [STL](https://xemstudio.com/files/hardware/thick-washers-din-7349/din7349-m6.stl) — DIN 7349 M6: 6.4 × Ø17 × 3 - din7349-m8: [STEP](https://xemstudio.com/files/hardware/thick-washers-din-7349/din7349-m8.step) · [STL](https://xemstudio.com/files/hardware/thick-washers-din-7349/din7349-m8.stl) — DIN 7349 M8: 8.4 × Ø21 × 4 - din7349-m10: [STEP](https://xemstudio.com/files/hardware/thick-washers-din-7349/din7349-m10.step) · [STL](https://xemstudio.com/files/hardware/thick-washers-din-7349/din7349-m10.stl) — DIN 7349 M10: 10.5 × Ø25 × 4 - din7349-m12: [STEP](https://xemstudio.com/files/hardware/thick-washers-din-7349/din7349-m12.step) · [STL](https://xemstudio.com/files/hardware/thick-washers-din-7349/din7349-m12.stl) — DIN 7349 M12: 13 × Ø30 × 6 - din7349-m14: [STEP](https://xemstudio.com/files/hardware/thick-washers-din-7349/din7349-m14.step) · [STL](https://xemstudio.com/files/hardware/thick-washers-din-7349/din7349-m14.stl) — DIN 7349 M14: 15 × Ø36 × 6 - din7349-m16: [STEP](https://xemstudio.com/files/hardware/thick-washers-din-7349/din7349-m16.step) · [STL](https://xemstudio.com/files/hardware/thick-washers-din-7349/din7349-m16.stl) — DIN 7349 M16: 17 × Ø40 × 6 - din7349-m20: [STEP](https://xemstudio.com/files/hardware/thick-washers-din-7349/din7349-m20.step) · [STL](https://xemstudio.com/files/hardware/thick-washers-din-7349/din7349-m20.stl) — DIN 7349 M20: 21 × Ø44 × 8 - din7349-m22: [STEP](https://xemstudio.com/files/hardware/thick-washers-din-7349/din7349-m22.step) · [STL](https://xemstudio.com/files/hardware/thick-washers-din-7349/din7349-m22.stl) — DIN 7349 M22: 23 × Ø50 × 8 - din7349-m24: [STEP](https://xemstudio.com/files/hardware/thick-washers-din-7349/din7349-m24.step) · [STL](https://xemstudio.com/files/hardware/thick-washers-din-7349/din7349-m24.stl) — DIN 7349 M24: 25 × Ø50 × 10 - din7349-m27: [STEP](https://xemstudio.com/files/hardware/thick-washers-din-7349/din7349-m27.step) · [STL](https://xemstudio.com/files/hardware/thick-washers-din-7349/din7349-m27.stl) — DIN 7349 M27: 28 × Ø60 × 10 - din7349-m30: [STEP](https://xemstudio.com/files/hardware/thick-washers-din-7349/din7349-m30.step) · [STL](https://xemstudio.com/files/hardware/thick-washers-din-7349/din7349-m30.stl) — DIN 7349 M30: 31 × Ø68 × 10 ## Questions **How thick is an M8 DIN 7349 washer?** 4 mm: 8.4 mm bore, 21 mm outside. **What is DIN 7349 used for?** Bolts with heavy-duty spring pins (DIN 1481) and other joints that need a stiffer, thicker washer than DIN 125. ## Fits with - [Flat washers, M2–M8 (ISO 7089)](https://xemstudio.com/objects/flat-washers-metric/) - [Large (fender) washers, DIN 9021 / ISO 7093: M2.5–M36 bore, outside diameter, thickness + nylon variant + 8 washer files](https://xemstudio.com/objects/large-washers-din-9021-iso-7093/) - [Spring pins: slotted (ISO 8752, ASME B18.8.2) and coiled (ISO 8750): diameter, wall, chamfer, hole size, shear + hole gauges](https://xemstudio.com/objects/spring-pins-iso-8752-8750-asme-b18-8-2/)