ISO 4029HeadlessHexagon socket
ISO 4029 M3 × 4 Headless
ISO 4029 M3 × 4 is a socket set screw with a 4 mm nominal length, on a M3 × 0.5 mm metric thread. ISO equivalent of DIN 916, same cup point geometry and socket sizes.
Diameter3 mm
Length4 mm
Pitch0.5 mm
Socket size s1.5 mm
HeadHeadless
DriveHexagon socket
Dimensions
- Standard
- ISO 4029
- Type
- Socket set screw
- 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 ISO 4029. 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
Other lengthsISO 4029 M3
All M3 specificationsInterchangeability
ISO 4029 is catalogued with DIN 916 as its equivalent designation. Dimensions are compared field by field rather than assumed identical.