Military Standard Aircraft Machine Bolt
- Hexagon Head
- Drilled Head
- No Cotter Pin Hole
- Fine Threads
- UNF-3A
- Material: Steel
- Major Diameter: 0.375 in.
- Thread Per Inch (TPI): 24
- Length: 2.078 in.
- Grip Length: 1.438 in.
- Industry Standard Specification: AIA/NAS NASM3-20