NAS517-4-5 Close Tolerance Machine Screw, 1/4-28, UNF, 0.469 in L Thread, 1/4 in Dia

TECHNICAL INFORMATION

• National Aerospace Standard
• FAA-STD Approved

SPECIFICATIONS

• Diameter: 1/4 in
• Length: 0.781 in
• Thread Size: 1/4-28
• Thread Type: UNF
• Head Type: Flat Countersunk
• Thread Direction: Right Hand
• Material: Alloy Steel
• Drive Type: Phillips
• Finish: Cadmium/Chromate
• Thread Length: 0.469 in
• Thread Class: 3A
• Head Diameter: 0.452 to 0.51 in
• Grip Size: 0.312 in
• Tensile Strength: 160000 psi
• Domestic/Import: Domestic