Screw: hexagon socket countersunk head · DIN 7991
DIN 7991 countersunk head screw M12x20
DIN 7991 - Hexagon socket countersunk head cap screws
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Outdated standardDIN 7991 M12x20
| Thread diameter | 12 mm |
|---|---|
| Thread pitch | 1.75 mm |
| Screw length | 20 mm |
| Thread length | 20 mm |
| Head diameter | 24 mm |
| Theoretical head diameter | 25* mm |
| Head height | 6.5 mm |
| Hexagon socket size | 8 mm |
| Hexagon socket depth | 4.3 mm |
| Radius under head | 1 mm |
| Unthreaded shank diameter | 12 mm |
* Calculated value: worked out from the dimensions the standard specifies, not listed in the standard itself.