DIN 912Socket head (cylindrical)Hexagon socket
DIN 912 M12 × 20 Socket head (cylindrical)
DIN 912 M12 × 20 is a socket head cap screw with a 20 mm nominal length, on a M12 × 1.5 mm metric thread. A cap screw with a cylindrical head and internal hex drive. Because the head sits above the surface and the drive is recessed, it can be tightened hard and used in counterbores for a flush finish.
Diameter12 mm
Length20 mm
Pitch1.5 mm
Socket size s10 mm
Head Ø dk18 mm
HeadSocket head (cylindrical)
DriveHexagon socket
Dimensions
- Standard
- DIN 912
- Type
- Socket head cap screw
- Size
- M12 × 20
- Thread
- M12 × 1.5
- Length L
- 20 mm
- Socket size s
- 10 mm
- Head diameter dk
- 18 mm
- Head height k
- 12 mm
- Thread length b
- 36 mm
- Drive
- Hexagon socket
- Head
- Socket head (cylindrical)
Nominal values in millimetres as published in DIN 912. Estimated weight 41.727 g per piece in steel (41.993 g in stainless), calculated from the nominal geometry — real parts vary with tolerance and head chamfers.
Thread data
Full M12 thread pageDesignationM12 × 1.5 fine
Pitch1.5 mm
Major Ø12 mm
Pitch Ø11.03 mm
Minor Ø ext10.16 mm
Tap drillØ 10.5 mm
Other lengthsDIN 912 M12
All M12 specificationsInterchangeability
DIN 912 is catalogued with ISO 4762 as its equivalent designation. Dimensions are compared field by field rather than assumed identical.