Hexagon cap nuts, low type, DIN 917: M4–M12 width across flats, height, dome radius, thread depth — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/cap-nuts-low-din-917/  (sheet CC BY 4.0)
Basis: KIPP K1801 DIN 917 table (D, T min, H, SW, E, R), cross-checked against Böllhoff DIN 917 data sheets (M4–M8) and fasten.it's DIN 917 table
Catalog version: 2026-10-20

Sizes: see table below
- Columns: thread, width across flats s, total height h, dome radius r, minimum thread depth t. Böllhoff gives the same h, s, r and t min for M4–M8.
- M10 is drawn at SW17 and M12 at SW19 (KIPP); older editions also list SW16 and SW18. Thread drawn as a blind plain bore at the major diameter.

thread  s  h  r  t
M4  7  5.5  8  4.16
M5  8  7  10  4.96
M6  10  9  12  6.71
M8  13  12  15  9.21
M10  17  14  20  10.65
M12  19  16  25  13.15

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- KIPP (via Marek): K1801 hex cap nut, low style DIN 917: D, T, H, SW, E, R — web — Publisher's page; dimensions are facts — https://www.marek.eu/data/katalogove-listy/kipp/K1801.pdf
- Böllhoff: DIN 917 hexagon cap nuts, low form, data sheet — web — Publisher's page; dimensions are facts — https://eshop-hu.boellhoff.com/out/media/pdf/DIN_917_Stahl_06_AU___en.pdf
- fasten.it: DIN 917 hexagon cap nuts, low type — web — Publisher's page; dimensions are facts — https://www.fasten.it/Search/Suppliers/107

Free files (CC BY 4.0, Xem Studio; STEP + STL, 6 parts): https://xemstudio.com/files/hardware/cap-nuts-low-din-917/index.json
API: https://xemstudio.com/api/geometry?object=cap-nuts-low-din-917