For Spring Lock Washer — GB/T 5782 / ISO 4014 (Series 003), the M5 thread sits in the small-to-medium range of the catalog and is one of the most-asked spring lock washer — gb/t 5782 / iso 4014 (series 003) in this family. The dimensional and assembly data follow.
M5 Dimensional Row (GB/T 5782 / ISO 4014)
| For bolt size | Inner diameter d1 (mm) | Outer diameter d2 (mm) | Width b (mm) | Thickness t (mm) | Reference standard |
|---|---|---|---|---|---|
| M5 | 5.1 | 9.2 | 1.5 | 1.2 | GB/T 93 / DIN 127B |
Spanner & Drive for M5 Spring Lock Washer — GB/T 5782 / ISO 4014 (Series 003)
Drive geometry for M5 Spring Lock Washer — GB/T 5782 / ISO 4014 (Series 003) is given by the row above; match the tool to the listed values.
Common Applications for M5 Spring Lock Washer — GB/T 5782 / ISO 4014 (Series 003)
M5 Spring Lock Washer — GB/T 5782 / ISO 4014 (Series 003) are commonly specified for small electronics hardware and precision assemblies.
Installation Tips for M5 Spring Lock Washer — GB/T 5782 / ISO 4014 (Series 003)
- At M5 the joint is sensitive to over-torque — use a torque-limiting driver and check the head doesn't bury into a softer counterpart.
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.