ISO 4017Hexagon headExternal hexagon
ISO 4017 M8 × 50 Hexagon head
ISO 4017 M8 × 50 is a hexagon head bolt with a 50 mm nominal length, on a M8 × 1 mm metric thread. ISO version of the full thread hexagon head screw. Head dimensions are dimensionally compatible with DIN 933 for the same nominal size.
Diameter8 mm
Length50 mm
Pitch1 mm
Socket size s13 mm
Head height k5.3 mm
HeadHexagon head
DriveExternal hexagon
Dimensions
- Standard
- ISO 4017
- Type
- Hexagon head bolt
- Size
- M8 × 50
- Thread
- M8 × 1
- Length L
- 50 mm
- Socket size s
- 13 mm
- Head height k
- 5.3 mm
- Drive
- External hexagon
- Head
- Hexagon head
Nominal values in millimetres as published in ISO 4017. Estimated weight 19.729 g per piece in steel (19.855 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
Other lengthsISO 4017 M8
All M8 specificationsInterchangeability
ISO 4017 is catalogued with DIN 933 as its equivalent designation. Dimensions are compared field by field rather than assumed identical.