ISO 4029HeadlessHexagon socket
ISO 4029 M4 × 8 Headless
ISO 4029 M4 × 8 is a socket set screw with a 8 mm nominal length, on a M4 × 0.7 mm metric thread. ISO equivalent of DIN 916, same cup point geometry and socket sizes.
Diameter4 mm
Length8 mm
Pitch0.7 mm
Socket size s2 mm
HeadHeadless
DriveHexagon socket
Dimensions
- Standard
- ISO 4029
- Type
- Socket set screw
- Size
- M4 × 8
- Thread
- M4 × 0.7
- Length L
- 8 mm
- Socket size s
- 2 mm
- Drive
- Hexagon socket
- Head
- Headless
Nominal values in millimetres as published in ISO 4029. Estimated weight 0.789 g per piece in steel (0.794 g in stainless), calculated from the nominal geometry — real parts vary with tolerance and head chamfers.
Thread data
Full M4 thread pageDesignationM4 × 0.7
Pitch0.7 mm
Major Ø4 mm
Pitch Ø3.55 mm
Minor Ø ext3.14 mm
Tap drillØ 3.3 mm
Other lengthsISO 4029 M4
All M4 specificationsInterchangeability
ISO 4029 is catalogued with DIN 916 as its equivalent designation. Dimensions are compared field by field rather than assumed identical.