DIN 934Hexagon full nutExternal hexagon
DIN 934 M20 Hexagon full nut
DIN 934 M20 is a hexagon full nut, on a M20 × 1.5 mm metric thread. The default metric hex nut. Height is roughly 0.8 times the nominal diameter, which is what defines a 'full' nut as opposed to the thin DIN 439 jam nut.
Diameter20 mm
Pitch1.5 mm
Socket size s30 mm
Height m18 mm
DriveExternal hexagon
Dimensions
- Standard
- DIN 934
- Type
- Hexagon full nut
- Size
- M20
- Thread
- M20 × 1.5
- Socket size s
- 30 mm
- Height m
- 18 mm
- Drive
- External hexagon
Nominal values in millimetres as published in DIN 934. Estimated weight 38.206 g per piece in steel (38.45 g in stainless), calculated from the nominal geometry — real parts vary with tolerance and head chamfers.
Thread data
Full M20 thread pageDesignationM20 × 1.5 fine
Pitch1.5 mm
Major Ø20 mm
Pitch Ø19.03 mm
Minor Ø ext18.16 mm
Tap drillØ 18.5 mm
Other lengthsDIN 934 M20
All M20 specificationsInterchangeability
DIN 934 is catalogued with ISO 4032 as its equivalent designation. Dimensions are compared field by field rather than assumed identical.