M5 Wedge / Taper Washer (GB/T 852) are specified by thread size, length and head dimensions. The M5 row from the standard is reproduced below, followed by the drill sizes, spanner size and torque values used when installing this size.
M5 Dimensional Row (GB/T 852)
| For bolt size | Inner diameter d1 (mm) | Outer diameter d2 (mm) | Mean thickness t (mm) | Slope | Reference standard |
|---|---|---|---|---|---|
| M5 | 5.5 | 11 | 2.0 | 1:6 | DIN 6917 / GB/T 853 |
Spanner & Drive for M5 Wedge / Taper Washer — GB/T 852 (Series 084)
Drive geometry for M5 Wedge / Taper Washer — GB/T 852 (Series 084) is given by the row above; match the tool to the listed values.
Common Applications for M5 Wedge / Taper Washer — GB/T 852 (Series 084)
M5 Wedge / Taper Washer — GB/T 852 (Series 084) are commonly specified for small electronics hardware and precision assemblies.
Mating Parts for M5
A M5 flat washer pairs with a M5 bolt/screw and matching M5 nut.
When to Step Up or Down from M5
When the joint preload approaches the proof load of M5 class 8.8, step up to M6 class 8.8 (or move to M5 class 10.9). When the joint is over-specified, M4 often saves weight and cost without losing the safety margin.