Screw: hexagon socket countersunk head · DIN 7991
DIN 7991 countersunk head screw M8x20
DIN 7991 - Hexagon socket countersunk head cap screws
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Outdated standardDIN 7991 M8x20
| Thread diameter | 8 mm |
|---|---|
| Thread pitch | 1.25 mm |
| Screw length | 20 mm |
| Thread length | 20 mm |
| Head diameter | 16 mm |
| Theoretical head diameter | 16.8* mm |
| Head height | 4.4 mm |
| Hexagon socket size | 5 mm |
| Hexagon socket depth | 3.2 mm |
| Radius under head | 0.5 mm |
| Unthreaded shank diameter | 8 mm |
* Calculated value: worked out from the dimensions the standard specifies, not listed in the standard itself.