Square thin nuts, DIN 562: M1.6–M10 width across flats and height — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/square-thin-nuts-din-562/  (sheet CC BY 4.0)
Basis: fasten.it's DIN 562 table (05/2013 edition), cross-checked against JC Fasteners' DIN 562 sheet and CDE Fasteners' DIN 562 data
Catalog version: 2026-10-20

Sizes: see table below
- Columns: thread d, width across flats s (max = nominal), height m (max = nominal). The 2013 edition gives s = 16 for M10 (the 1987 edition had 17).
- Files: square block with the thread as a plain bore at the major diameter, as for the other nuts on Xem. Real nuts may have slightly broken corners (e min is about 1.26 s).

thread  s  m
M1.6  3.2  1.0
M2  4  1.2
M2.5  5  1.6
M3  5.5  1.8
M3.5  6  2.0
M4  7  2.2
M5  8  2.7
M6  10  3.2
M8  13  4.0
M10  16  5.0

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- fasten.it: DIN 562 square thin nuts (05/2013): s, m, e — web — Publisher's page; dimensions are facts — https://fasten.it/norms/norm/din_562
- CDE Fasteners: DIN 562 square thin nuts: width across flats and thickness — web — Publisher's page; dimensions are facts — https://cdefasteners.com/sites/default/files/product-specs/metdin562.pdf

Free files (CC BY 4.0, Xem Studio; STEP + STL, 10 parts): https://xemstudio.com/files/hardware/square-thin-nuts-din-562/index.json
API: https://xemstudio.com/api/geometry?object=square-thin-nuts-din-562