Imperial 20144 USS Hex Head Cap Screw, Grade 5, 3/8×1/2, Pkg/100

Highlights:

• Size: 3/8X1/2
• Thread pitch: 3/8-16 UNC
• Conforms to SAE Grade 5 physical and mechanical specifications
• Zinc plated for corrosion resistance
• Pack of 100

Technical Data:

• Material and Mechanical Properties of SAE J429
• Dimensions: ANSI/ASME B18.2.1 Hex Head Cap Screws
• Threads: Radius Root Class 2A to ANSI/ASME B1.1
• Proof Load: 1/4 – 1 Nominal Diameter 85.000 psi; over 1 Nominal Diameter 74.000 psi
• Hardness: 1/4 – 1 Nominal Diameter Rockwell C25-C34; over 1 Nominal Diameter C19-C30
• Tensile: 1/4 – 1 Nominal Diameter 120.000 psi (minimum) over 1 Nominal Diameter 105.000 psi (minimum)
• Decarburation: SAE J121
• Discontinuities: SAE J1061

?Rule of thumb to figure bolt thread length:

• For bolts under 6: Twice the bolt diameter plus a 1/4
• For bolts over 6: Twice the bolt diameter plus a 1/2
• This gives you the approximate bolt thread length available