Description
Military Standard Aircraft Machine Bolt
• Hexagon Head
• Undrilled Head
• No Cotter Pin Hole
• Fine Threads
• UNF-3A
• Material: Steel
• Major Diameter: 0.3125 in.
• Thread Per Inch (TPI): 24
• Length: 4.969 in.
• Grip Length: 4.438 in.
• Industry Standard Specification: AIA/NAS NASM3-20
