NAS1581C4T4P Close Tolerance Screw, 1/4 in Dia, 0.653 in L, UNF, 0.403 in L Thread

TECHNICAL INFORMATION
• FAA-STD Approved

SPECIFICATIONS
• Diameter: 1/4 in
• Length: 0.653 in
• Thread Type: UNF
• Thread Length: 0.403 in
• Thread Direction: Right Hand
• Thread Class: 3A
• Head Diameter: 0.3504 to 0.3988 in
• Head Type: 100 deg Flat Countersunk
• Thread Size: 1/4-28
• Material: Steel
• Finish: Cadmium
• Domestic/Import: Domestic