ISO 4014Hexagon headExternal hexagon
ISO 4014 M16 × 80 Hexagon head
ISO 4014 M16 × 80 is a hexagon head bolt with a 80 mm nominal length, on a M16 × 1.5 mm metric thread. ISO version of the partial thread hexagon head bolt. The standard thread length is defined by nominal length bands, so long bolts have a proportionally longer plain shank.
Diameter16 mm
Length80 mm
Pitch1.5 mm
Socket size s24 mm
Head height k10 mm
HeadHexagon head
DriveExternal hexagon
Dimensions
- Standard
- ISO 4014
- Type
- Hexagon head bolt
- Size
- M16 × 80
- Thread
- M16 × 1.5
- Length L
- 80 mm
- Socket size s
- 24 mm
- Head height k
- 10 mm
- Drive
- External hexagon
- Head
- Hexagon head
Nominal values in millimetres as published in ISO 4014. Estimated weight 126.267 g per piece in steel (127.071 g in stainless), calculated from the nominal geometry — real parts vary with tolerance and head chamfers.
Thread data
Full M16 thread pageDesignationM16 × 1.5 fine
Pitch1.5 mm
Major Ø16 mm
Pitch Ø15.03 mm
Minor Ø ext14.16 mm
Tap drillØ 14.5 mm
Other lengthsISO 4014 M16
All M16 specificationsInterchangeability
ISO 4014 is catalogued with DIN 931 as its equivalent designation. Dimensions are compared field by field rather than assumed identical.