ARP 662-1009 Metric Hex Bolt Kit (8740 Chromoly, Black Oxide)

Secure your high-performance components with the ARP 662-1009 Metric Hex Bolt Kit. Designed for universal automotive, marine, and motorsport fabrication applications, these premium fasteners provide superior reliability and clamping force over standard factory hardware. ARP delivers the trusted durability needed for professional racing and severe-duty enthusiast builds alike.

Manufactured from premium 8740 chromoly steel, these bolts are heat-treated and feature a stealthy black oxide finish for excellent durability. Rated at a massive 180,000 PSI tensile strength, they far exceed the limits of standard OEM fasteners. Each kit includes five precision-machined hex-head bolts and matching parallel-ground washers to ensure even load distribution and consistent torque specs across your applications.

Key Features & Benefits:

• 180,000 PSI Tensile Strength: Offers superior reliability and clamping force over standard hardware.
• 8740 Chromoly Steel: Premium alloy construction designed for high-stress motorsport environments.
• Black Oxide Finish: Provides a clean, stealthy aesthetic with light corrosion resistance.
• Complete Set: Includes 5 hex-head bolts and matching parallel-ground washers for even load distribution.

Technical Specifications:

• Engine Compatibility: Universal
• Material / Build: 8740 Chromoly Steel, Black Oxide
• Warranty: ARP Standard Manufacturer Warranty
• Brand: ARP