This page covers M10 Tab Lock Washer for Round Nut to GB/T 858: the full dimensional row, hole and tool sizes, proof-load data and typical applications. All values are taken from the governing standards (GB/T 858 together with ISO 273, ISO 724 and ISO 898-1 where applicable).
M10 Dimensional Row (GB/T 858)
| For shaft / nut size | Inner diameter d1 (mm) | Outer diameter d2 (mm) | Thickness t (mm) | Tab length (mm) | Reference standard |
|---|---|---|---|---|---|
| M10 | 10.5 | 21 | 1.0 | 8 | GB/T 858 |
Spanner & Drive for M10 Tab Lock Washer for Round Nut — GB/T 858 (Series 073)
Drive geometry for M10 Tab Lock Washer for Round Nut — GB/T 858 (Series 073) is given by the row above; match the tool to the listed values.
Common Applications for M10 Tab Lock Washer for Round Nut — GB/T 858 (Series 073)
M10 Tab Lock Washer for Round Nut — GB/T 858 (Series 073) are commonly specified for general-purpose load-spreading and locking under machine bolts.
Mating Parts for M10
A M10 flat washer pairs with a M10 bolt/screw and matching M10 nut.
When to Step Up or Down from M10
When the joint preload approaches the proof load of M10 class 8.8, step up to M12 class 8.8 (or move to M10 class 10.9). When the joint is over-specified, M8 often saves weight and cost without losing the safety margin.

