• Premium-grade Chrome Moly Header Bolt Kit
• Rated at 170,000 psi tensile strength - substantially stronger than Grade 8 hardware
• Application: Small Block Chevy
• Set of 12 bolts & washers
• Compact 12-Point Nut
• Bolt Diameter: 3/8"
• Bolt Length: .750
• Wrench: 3/8"
• Finish: Black Oxide