DIN 7991Countersunk head (90°)Hexagon socket
DIN 7991 M10 × 100 Countersunk head (90°)
DIN 7991 M10 × 100 is a socket countersunk head screw with a 100 mm nominal length, on a M10 × 1.25 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.
Diameter10 mm
Length100 mm
Pitch1.25 mm
Socket size s6 mm
Head Ø dk20 mm
HeadCountersunk head (90°)
DriveHexagon socket
Dimensions
- Standard
- DIN 7991
- Type
- Socket countersunk head screw
- Size
- M10 × 100
- Thread
- M10 × 1.25
- Length L
- 100 mm
- Socket size s
- 6 mm
- Head diameter dk
- 20 mm
- Head height k
- 6.2 mm
- Thread length b
- 32 mm
- Drive
- Hexagon socket
- Head
- Countersunk head (90°)
Nominal values in millimetres as published in DIN 7991. Estimated weight 70.573 g per piece in steel (71.023 g in stainless), calculated from the nominal geometry — real parts vary with tolerance and head chamfers.
Thread data
Full M10 thread pageDesignationM10 × 1.25 fine
Pitch1.25 mm
Major Ø10 mm
Pitch Ø9.19 mm
Minor Ø ext8.47 mm
Tap drillØ 8.75 mm
Other lengthsDIN 7991 M10
All M10 specificationsInterchangeability
DIN 7991 is catalogued with ISO 10642 as its equivalent designation. Dimensions are compared field by field rather than assumed identical.