DIN 915HeadlessHexagon socket
DIN 915 M3 × 4 Headless
DIN 915 M3 × 4 is a socket set screw, dog point with a 4 mm nominal length, on a M3 × 0.5 mm metric thread. A cylindrical dog point that drops into a drilled hole in the shaft. It locks the position without damaging the shaft surface.
Diameter3 mm
Length4 mm
Pitch0.5 mm
Socket size s1.5 mm
HeadHeadless
DriveHexagon socket
Dimensions
- Standard
- DIN 915
- Type
- Socket set screw, dog point
- Size
- M3 × 4
- Thread
- M3 × 0.5
- Length L
- 4 mm
- Socket size s
- 1.5 mm
- Drive
- Hexagon socket
- Head
- Headless
Nominal values in millimetres as published in DIN 915. Estimated weight 0.222 g per piece in steel (0.223 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