ISO 4032Hexagon nutExternal hexagon
ISO 4032 M20 Hexagon nut
ISO 4032 M20 is a hexagon nut, on a M20 × 1.5 mm metric thread. ISO equivalent of DIN 934. In practice these two are treated as interchangeable in purchasing for the common stock range.
Diameter20 mm
Pitch1.5 mm
Socket size s30 mm
Height m18 mm
DriveExternal hexagon
Dimensions
- Standard
- ISO 4032
- Type
- Hexagon 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 ISO 4032. 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 lengthsISO 4032 M20
All M20 specificationsInterchangeability
ISO 4032 is catalogued with DIN 934 as its equivalent designation. Dimensions are compared field by field rather than assumed identical.