When you need Wing Nut — GB/T 62 / DIN 315 (Series 077) in the M3 size, the controlling values come from GB/T 62 / DIN 315. This page lists them in one place — pitch, head geometry, tool size and the matching hole.
M3 Dimensional Row (GB/T 62 / DIN 315)
| Size | Pitch (mm) | Wing width A (mm) | Wing height h (mm) | Nut height m (mm) | Reference standard |
|---|---|---|---|---|---|
| M3 | 0.5 | 12 | 8 | 5 | GB/T 62 / DIN 315 |
Spanner & Drive for M3 Wing Nut — GB/T 62 / DIN 315 (Series 077)
Drive geometry for M3 Wing Nut — GB/T 62 / DIN 315 (Series 077) is given by the row above; match the tool to the listed values.
Common Applications for M3 Wing Nut — GB/T 62 / DIN 315 (Series 077)
M3 Wing Nut — GB/T 62 / DIN 315 (Series 077) are commonly specified for paired with the same-size screws on PCB hardware, light enclosures and small-scale assemblies.
Installation Tips for M3 Wing Nut — GB/T 62 / DIN 315 (Series 077)
- At M3 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 M3
Pair M3 with the matching M3 bolt or screw, plus a M3 flat washer where required to distribute load on softer materials.
When to Step Up or Down from M3
When the joint preload approaches the proof load of M3 class 8.8, step up to M4 class 8.8 (or move to M3 class 10.9). When the joint is over-specified, M2 often saves weight and cost without losing the safety margin.