Screw: hexagon socket button head · ISO 7380-1
ISO 7380-1 button head screw M4x20
ISO 7380-1 - Hexagon socket button head screws with reduced loadability
ISO 7380-1 M4x20
| Thread diameter | 4 mm |
|---|---|
| Thread pitch | 0.7 mm |
| Screw length | 20 mm |
| Thread length | 20 mm |
| Head diameter | 7.6 mm |
| Head height | 2.2 mm |
| Hexagon socket size | 2.5 mm |
| Hexagon socket depth | 1.3 mm |
| Head bearing face diameter | 6.66 mm |
| Radius under head | 0.4 mm |
| Transition diameter | 4.7 mm |
| Unthreaded shank diameter | 4 mm |