DIN 916HeadlessHexagon socket
DIN 916 M16 × 40 Headless
DIN 916 M16 × 40 is a socket set screw, cup point with a 40 mm nominal length, on a M16 × 1.5 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.
Diameter16 mm
Length40 mm
Pitch1.5 mm
Socket size s8 mm
HeadHeadless
DriveHexagon socket
Dimensions
- Standard
- DIN 916
- Type
- Socket set screw, cup point
- Size
- M16 × 40
- Thread
- M16 × 1.5
- Length L
- 40 mm
- Socket size s
- 8 mm
- Drive
- Hexagon socket
- Head
- Headless
Nominal values in millimetres as published in DIN 916. Estimated weight 63.133 g per piece in steel (63.536 g in stainless), calculated from the nominal geometry — real parts vary with tolerance and head chamfers.
Thread data
Full M16 thread pageDesignationM16 × 1.5 fine
Pitch1.5 mm
Major Ø16 mm
Pitch Ø15.03 mm
Minor Ø ext14.16 mm
Tap drillØ 14.5 mm
Other lengthsDIN 916 M16
All M16 specificationsInterchangeability
DIN 916 is catalogued with ISO 4029 as its equivalent designation. Dimensions are compared field by field rather than assumed identical.