MS21250-04008 Undrilled Head External Wrenching Flanged Bolt, 1/4-28, 1/4 in Dia

TECHNICAL INFORMATION

• FAA-STD Approved

SPECIFICATIONS

• Series: MS21250
• Diameter: 1/4 in
• Dash Number: 8
• Length: 1.137 in
• Head Diameter: 0.304 to 0.313 in
• Material: Alloy Steel
• Finish: Cadmium
• Thread Length: 0.492 in
• Thread Size: 1/4-28
• Thread Type: UNJF
• Thread Class: 3A
• Thread Direction: Right Hand
• Tensile Strength: 180000 psi
• Head Height: 0.3 in
• Head Type: Double Hexagonal
• Number of Points: 12
• Shear Strength: 108000 psi
• Grip Size: 1.012 in
• Grade: 4140
• Domestic/Import: Domestic
• Suitable For Use With: Helicopter

AIRCRAFT ELIGIBILITY

• A109-A119