DIN 933Hexagon headExternal hexagon
DIN 933 M20 × 100 Hexagon head
DIN 933 M20 × 100 is a hexagon head bolt with a 100 mm nominal length, on a M20 × 1.5 mm metric thread. A hexagon head fastener threaded all the way to the head. Glyph marking on the head identifies the property class, normally 8.8, 10.9 or A2-70.
Diameter20 mm
Length100 mm
Pitch1.5 mm
Socket size s30 mm
Head height k12.5 mm
HeadHexagon head
DriveExternal hexagon
Dimensions
- Standard
- DIN 933
- Type
- Hexagon head bolt
- Size
- M20 × 100
- Thread
- M20 × 1.5
- Length L
- 100 mm
- Socket size s
- 30 mm
- Head height k
- 12.5 mm
- Drive
- External hexagon
- Head
- Hexagon head
Nominal values in millimetres as published in DIN 933. Estimated weight 246.615 g per piece in steel (248.186 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 933 M20
All M20 specificationsInterchangeability
DIN 933 is catalogued with ISO 4017 as its equivalent designation. Dimensions are compared field by field rather than assumed identical.