DIN 916HeadlessHexagon socket
DIN 916 M3 × 3 Headless
DIN 916 M3 × 3 is a socket set screw, cup point with a 3 mm nominal length, on a M3 × 0.5 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.
Diameter3 mm
Length3 mm
Pitch0.5 mm
Socket size s1.5 mm
HeadHeadless
DriveHexagon socket
Dimensions
- Standard
- DIN 916
- Type
- Socket set screw, cup point
- Size
- M3 × 3
- Thread
- M3 × 0.5
- Length L
- 3 mm
- Socket size s
- 1.5 mm
- Drive
- Hexagon socket
- Head
- Headless
Nominal values in millimetres as published in DIN 916. Estimated weight 0.166 g per piece in steel (0.168 g in stainless), calculated from the nominal geometry — real parts vary with tolerance and head chamfers.
Thread data
Full M3 thread pageDesignationM3 × 0.5
Pitch0.5 mm
Major Ø3 mm
Pitch Ø2.68 mm
Minor Ø ext2.39 mm
Tap drillØ 2.5 mm
Other lengthsDIN 916 M3
All M3 specificationsInterchangeability
DIN 916 is catalogued with ISO 4029 as its equivalent designation. Dimensions are compared field by field rather than assumed identical.