ISO 4029HeadlessHexagon socket
ISO 4029 M5 × 25 Headless
ISO 4029 M5 × 25 is a socket set screw with a 25 mm nominal length, on a M5 × 0.8 mm metric thread. ISO equivalent of DIN 916, same cup point geometry and socket sizes.
Diameter5 mm
Length25 mm
Pitch0.8 mm
Socket size s2.5 mm
HeadHeadless
DriveHexagon socket
Dimensions
- Standard
- ISO 4029
- Type
- Socket set screw
- Size
- M5 × 25
- Thread
- M5 × 0.8
- Length L
- 25 mm
- Socket size s
- 2.5 mm
- Drive
- Hexagon socket
- Head
- Headless
Nominal values in millimetres as published in ISO 4029. Estimated weight 3.853 g per piece in steel (3.878 g in stainless), calculated from the nominal geometry — real parts vary with tolerance and head chamfers.
Thread data
Full M5 thread pageDesignationM5 × 0.8
Pitch0.8 mm
Major Ø5 mm
Pitch Ø4.48 mm
Minor Ø ext4.02 mm
Tap drillØ 4.2 mm
Other lengthsISO 4029 M5
All M5 specificationsInterchangeability
ISO 4029 is catalogued with DIN 916 as its equivalent designation. Dimensions are compared field by field rather than assumed identical.