FASTENER STANDARD
M3 x 20
Hexagon Socket Head Cap Screw — DIN 912 / ISO 4762 / GB/T 70.1
M3 x 20 is listed in the confirmed supply specifications of the products shown below. Dimensions are referenced against DIN 912 / ISO 4762 / GB/T 70.1; where these standards differ, both values are shown so the correct one can be confirmed before ordering. Packing quantity, stock status and mechanical property class are confirmed in the quotation. Column symbols: P = thread pitch; dk = head diameter; k = head height.
Edition to confirm · Specification| Standard | Status | P (mm) | socket (mm) | dk (mm) | k (mm) | dkMin (mm) | kMin (mm) | rMin (mm) | driveNo (mm) | driveRefH (mm) | socketDepthMax (mm) | socketDepthMin (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DIN 912 | Historical | 0.5 | 2.5 | 5.5 | 3 | - | - | - | - | - | - | - |
| ISO 4762 | Current | 0.5 | 2.5 | 5.5 | 3 | - | - | - | - | - | - | - |
| GB/T 70.1 | Current | 0.5 | 2.5 | 5.5 | 3 | - | - | - | - | - | - | - |