Fastener Technical Specifications
Thread Diameter: 0.138 inches
Thread Class: 3a
Surface Treatment Specification: Class 3 federal specification single treatment response type 2 qq-p-416
Surface Treatment: Cadmium and chromate
Minimum Yield Strength: 130000 pounds per square inch
Minimum Tensile Strength (psi): 160000 pounds per square inch
Material: Steel
Head Style: Flat chamfer
Internal Drive Style: Hexagon
Head Height: Between 0.134 inches and 0.138 inches
Head Diameter: Between 0.218 inches and 0.226 inches
Hardness Rating: 36.0 rockwell c and 45.0 rockwell c
Fastener Length: Between 0.609 inches and 0.641 inches
Thread Direction: Right-hand
Thread Length: Between 0.609 inches and 0.641 inches
Thread Qty Per Inch (TPI): 32
Thread Series Designator: UNC (coarse thread)
Width Across Flats: Between 0.109 inches and 0.111 inches
