Description
Military Standard Aircraft Machine Bolt
• Coarse Thread
• UNC-3A
• Drilled Head
• Material: Steel
• Finish: Cadmium Plate
• Major Diameter: 0.25 in.
• Threads Per Inch (TPI): 20
• Length: 1.656 in.
• Grip: 1.125 in.
• Industry Standard Specification: AIA/NAS NASM20074
