This page covers M10 Hex Nuts to ISO 4032 / ISO 4033: the full dimensional row, hole and tool sizes, proof-load data and typical applications. All values are taken from the governing standards (ISO 4032 / ISO 4033 together with ISO 273, ISO 724 and ISO 898-1 where applicable).
M10 Dimensional Row (ISO 4032 / ISO 4033)
| Size | Pitch (mm) | Width across flats s (mm) | Width across corners e min (mm) | Nut height m style 1 (mm) | Nut height m style 2 (mm) | Reference standard |
|---|---|---|---|---|---|---|
| M10 | 1.5 | 16.0 | 17.77 | 8.0 | 10.0 | ISO 4032 (Style1) / ISO 4033 (Style2) |
Spanner & Drive for M10 Hex Nuts
M10 Hex Nuts have a width across flats of 16.0 mm — fit a 16.0 mm open-ended spanner or socket. Use a 6-point socket for tight clearances and to reduce rounding; for repeated assembly choose a torque wrench so the joint preload is repeatable.
Common Applications for M10 Hex Nuts
M10 Hex Nuts are commonly specified for general-purpose joints in machinery, fixturing and equipment frames.
Installation Tips for M10 Hex Nuts
- Use a 6-point socket where access allows — 12-point sockets are more prone to rounding the corners on smaller sizes.
- On flanged or serrated variants, do NOT add a separate flat washer — the flange already spreads the load and the washer can defeat the locking serrations.
Mating Parts for M10
Pair M10 with the matching M10 bolt or screw, plus a M10 flat washer where required to distribute load on softer materials.