ARP 741-1125 5/16-24 x 1.125 12-Point Chromoly Bolt Kit Black Oxide

The ARP 741-1125 is a premium-quality chromoly bolt kit designed for high-performance automotive, marine, and powersports applications. This kit includes five specially heat-treated 8740 chromoly steel bolts with a black oxide finish for superior corrosion resistance.

Key Specifications:

• Thread Size: 5/16 inch-24 RH (right-hand thread)
• Under Head Length (UHL): 1.125 inches
• Head Style: 12-point for improved wrench engagement
• Material: 8740 chromoly steel, heat-treated
• Finish: Black oxide coating
• Tensile Strength: Nominally rated at 180,000 psi

Performance Benefits:

• Provides substantial extra margin of safety over standard Grade 8 hardware
• 12-point head design allows for better tool contact and easier installation in tight spaces
• Heat-treated chromoly construction delivers exceptional strength-to-weight ratio
• Black oxide finish offers corrosion protection and professional appearance

ARP has been the world leader in fastener engineering since 1968, trusted by top engine builders and professional race teams for critical applications requiring maximum reliability and strength.