EngiRef / Metric Bolt Specification
M16
M16 coarse-thread metric bolt: 2 mm pitch, 16 mm major diameter. Tensile stress area 157 mm² per ISO 898-1. Takes a 24 mm wrench. Free bolt specification table…
Specification
- Size
- M16
- Pitch (mm)
- 2
- Major diameter d (mm)
- 16
- Minor diameter d₃ (mm, external thread)
- 13.55
- Tensile stress area (mm²)
- 157
- Head height (mm)
- 10
- Head diameter (mm)
- 24
- Wrench size (mm)
- 24
Tensile stress area follows ISO 898-1, At = (π/4)(d − 0.9382p)². Verify against the current standard and the fastener manufacturer's data before safety-critical design.