Description
Military Standard Aircraft Machine Bolt
• Hexagon Head
• Undrilled Head
• No Cotter Pin Hole
• Fine Threads
• UNF-3A
• Material: Steel
• Major Diameter: 0.25 in.
• Thread Per Inch (TPI): 28
• Length: 3.031 in.
• Grip Length: 2.563 in.
• Industry Standard Specification: AIA/NAS NASM3-20
