DIN 914HeadlessHexagon socket
DIN 914 M4 × 20 Headless
DIN 914 M4 × 20 is a socket set screw, cone point with a 20 mm nominal length, on a M4 × 0.7 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.
Diameter4 mm
Length20 mm
Pitch0.7 mm
Socket size s2 mm
HeadHeadless
DriveHexagon socket
Dimensions
- Standard
- DIN 914
- Type
- Socket set screw, cone point
- Size
- M4 × 20
- Thread
- M4 × 0.7
- Length L
- 20 mm
- Socket size s
- 2 mm
- Drive
- Hexagon socket
- Head
- Headless
Nominal values in millimetres as published in DIN 914. Estimated weight 1.973 g per piece in steel (1.985 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