DIN 7991Countersunk head (90°)Hexagon socket
DIN 7991 M14 × 100 Countersunk head (90°)
DIN 7991 M14 × 100 is a socket countersunk head screw with a 100 mm nominal length, on a M14 × 1.5 mm metric thread. Flat head version of the socket screw. The 90° cone seats flush in a matching countersink so nothing protrudes above the surface.
Diameter14 mm
Length100 mm
Pitch1.5 mm
Socket size s10 mm
Head Ø dk27 mm
HeadCountersunk head (90°)
DriveHexagon socket
Dimensions
- Standard
- DIN 7991
- Type
- Socket countersunk head screw
- Size
- M14 × 100
- Thread
- M14 × 1.5
- Length L
- 100 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 DIN 7991. Estimated weight 143.335 g per piece in steel (144.248 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 lengthsDIN 7991 M14
All M14 specificationsInterchangeability
DIN 7991 is catalogued with ISO 10642 as its equivalent designation. Dimensions are compared field by field rather than assumed identical.