Military Standard Tension Bolt
- Hexagon head
- Close tolerance
- Fine threads
- UNJF-3A
- Non-locking
- Undrilled head
- Material: Alloy steel
- Finish: Cadmium plated
- Threads per inch (TPI): 28
- Grip length: 0.75 inches
- Normal sized shank
- Industry standard specification: AIA/NAS NAS6603-6620