ISO 10642Countersunk head (90°)Hexagon socket
ISO 10642 M4 × 12 Countersunk head (90°)
ISO 10642 M4 × 12 is a socket countersunk head screw with a 12 mm nominal length, on a M4 × 0.7 mm metric thread. ISO equivalent of DIN 7991. Both use the same 90° countersink angle, so mating holes are interchangeable.
Diameter4 mm
Length12 mm
Pitch0.7 mm
Socket size s2.5 mm
Head Ø dk8 mm
HeadCountersunk head (90°)
DriveHexagon socket
Dimensions
- Standard
- ISO 10642
- Type
- Socket countersunk head screw
- Size
- M4 × 12
- Thread
- M4 × 0.7
- Length L
- 12 mm
- Socket size s
- 2.5 mm
- Head diameter dk
- 8 mm
- Head height k
- 2.48 mm
- Thread length b
- 20 mm
- Drive
- Hexagon socket
- Head
- Countersunk head (90°)
Nominal values in millimetres as published in ISO 10642. Estimated weight 1.755 g per piece in steel (1.766 g in stainless), calculated from the nominal geometry — real parts vary with tolerance and head chamfers.
Thread data
Full M4 thread pageDesignationM4 × 0.7
Pitch0.7 mm
Major Ø4 mm
Pitch Ø3.55 mm
Minor Ø ext3.14 mm
Tap drillØ 3.3 mm
Other lengthsISO 10642 M4
All M4 specificationsInterchangeability
ISO 10642 is catalogued with DIN 7991 as its equivalent designation. Dimensions are compared field by field rather than assumed identical.