ISO 10642Countersunk head (90°)Hexagon socket
ISO 10642 M14 × 25 Countersunk head (90°)
ISO 10642 M14 × 25 is a socket countersunk head screw with a 25 mm nominal length, on a M14 × 1.5 mm metric thread. ISO equivalent of DIN 7991. Both use the same 90° countersink angle, so mating holes are interchangeable.
Diameter14 mm
Length25 mm
Pitch1.5 mm
Socket size s10 mm
Head Ø dk27 mm
HeadCountersunk head (90°)
DriveHexagon socket
Dimensions
- Standard
- ISO 10642
- Type
- Socket countersunk head screw
- Size
- M14 × 25
- Thread
- M14 × 1.5
- Length L
- 25 mm
- Socket size s
- 10 mm
- Head diameter dk
- 27 mm
- Head height k
- 8.4 mm
- Thread length b
- 40 mm
- Drive
- Hexagon socket
- Head
- Countersunk head (90°)
Nominal values in millimetres as published in ISO 10642. Estimated weight 52.704 g per piece in steel (53.04 g in stainless), calculated from the nominal geometry — real parts vary with tolerance and head chamfers.
Thread data
Full M14 thread pageDesignationM14 × 1.5 fine
Pitch1.5 mm
Major Ø14 mm
Pitch Ø13.03 mm
Minor Ø ext12.16 mm
Tap drillØ 12.5 mm
Other lengthsISO 10642 M14
All M14 specificationsInterchangeability
ISO 10642 is catalogued with DIN 7991 as its equivalent designation. Dimensions are compared field by field rather than assumed identical.