DIN 914HeadlessHexagon socket
DIN 914 M8 × 40 Headless
DIN 914 M8 × 40 is a socket set screw, cone point with a 40 mm nominal length, on a M8 × 1 mm metric thread. A conical point that seats into a mating centre hole. It gives positive location rather than just friction, so the part can be removed and refitted in exactly the same place.
Diameter8 mm
Length40 mm
Pitch1 mm
Socket size s4 mm
HeadHeadless
DriveHexagon socket
Dimensions
- Standard
- DIN 914
- Type
- Socket set screw, cone point
- Size
- M8 × 40
- Thread
- M8 × 1
- Length L
- 40 mm
- Socket size s
- 4 mm
- Drive
- Hexagon socket
- Head
- Headless
Nominal values in millimetres as published in DIN 914. Estimated weight 15.783 g per piece in steel (15.884 g in stainless), calculated from the nominal geometry — real parts vary with tolerance and head chamfers.
Thread data
Full M8 thread pageDesignationM8 × 1 fine
Pitch1 mm
Major Ø8 mm
Pitch Ø7.35 mm
Minor Ø ext6.77 mm
Tap drillØ 7 mm