The M4 size of Wing Nut is dimensioned by GB/T 62 / DIN 315. The tables below give the dimensional row from the standard, the drill and spanner sizes that go with it, and the assembly torque per property class. The technical drawing on this page redraws to the exact values selected.
M4 Dimensional Row (GB/T 62 / DIN 315)
| Size | Pitch (mm) | Wing width A (mm) | Wing height h (mm) | Nut height m (mm) | Reference standard |
|---|---|---|---|---|---|
| M4 | 0.7 | 16 | 10 | 7 | GB/T 62 / DIN 315 |
Spanner & Drive for M4 Wing Nut — GB/T 62 / DIN 315 (Series 077)
Drive geometry for M4 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 M4 Wing Nut — GB/T 62 / DIN 315 (Series 077)
M4 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 M4 Wing Nut — GB/T 62 / DIN 315 (Series 077)
- At M4 the joint is sensitive to over-torque — use a torque-limiting driver and check the head doesn't bury into a softer counterpart.
When to Step Up or Down from M4
When the joint preload approaches the proof load of M4 class 8.8, step up to M5 class 8.8 (or move to M4 class 10.9). When the joint is over-specified, M3 often saves weight and cost without losing the safety margin.