When you need Plain Washer — GB/T 858 (Series 071) in the M10 size, the controlling values come from GB/T 858. This page lists them in one place — pitch, head geometry, tool size and the matching hole.
M10 Dimensional Row (GB/T 858)
| For bolt size | Inner diameter d1 (mm) | Outer diameter d2 (mm) | Thickness t (mm) | Reference standard |
|---|---|---|---|---|
| M10 | 10.5 | 20.0 | 2.0 | ISO 7089 / GB/T 97.1 |
Spanner & Drive for M10 Plain Washer — GB/T 858 (Series 071)
Drive geometry for M10 Plain Washer — GB/T 858 (Series 071) is given by the row above; match the tool to the listed values.
Common Applications for M10 Plain Washer — GB/T 858 (Series 071)
M10 Plain Washer — GB/T 858 (Series 071) 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.