DIN 916HeadlessHexagon socket
DIN 916 M6 × 25 Headless
DIN 916 M6 × 25 is a socket set screw, cup point with a 25 mm nominal length, on a M6 × 1 mm metric thread. A headless grub screw with a cupped end that digs into the shaft. Common for locking collars, pulleys and knobs onto shafts.
Diameter6 mm
Length25 mm
Pitch1 mm
Socket size s3 mm
HeadHeadless
DriveHexagon socket
Dimensions
- Standard
- DIN 916
- Type
- Socket set screw, cup point
- Size
- M6 × 25
- Thread
- M6 × 1
- Length L
- 25 mm
- Socket size s
- 3 mm
- Drive
- Hexagon socket
- Head
- Headless
Nominal values in millimetres as published in DIN 916. Estimated weight 5.549 g per piece in steel (5.584 g in stainless), calculated from the nominal geometry — real parts vary with tolerance and head chamfers.
Thread data
Full M6 thread pageDesignationM6 × 1
Pitch1 mm
Major Ø6 mm
Pitch Ø5.35 mm
Minor Ø ext4.77 mm
Tap drillØ 5 mm
Other lengthsDIN 916 M6
All M6 specificationsInterchangeability
DIN 916 is catalogued with ISO 4029 as its equivalent designation. Dimensions are compared field by field rather than assumed identical.