ARP 721-3500 Stainless Steel Hex Bolt - Kit 5-Pack

The ARP 721-3500 is a premium 5-piece fine thread hex bolt kit engineered for high-performance applications on automotive, marine, and trailer installations. These fasteners deliver professional-grade reliability for securing critical components where safety and strength matter most.

Premium Materials and Construction:

• Manufactured from specially alloyed ARP 300 stainless steel for superior corrosion resistance
• Nominally rated at 180,000 psi tensile strength, exceeding Grade 8 hardware specifications
• Precision-machined threads ensure consistent clamping force and thread engagement
• Includes matching washers for proper load distribution

Key Benefits:

• Exceptional rust resistance makes these fasteners ideal for marine environments and daily drivers
• Specially polished stainless steel finish provides a professional, show-quality appearance
• Truly maintenance-free operation—no need for re-coating or rust treatment
• Substantial safety margin over standard hardware for peace of mind in critical applications

ARP's reputation for manufacturing the finest fasteners in the performance industry is built into every bolt. Whether you're assembling an engine, securing suspension components, or installing accessories, these fasteners deliver the strength and durability that professionals demand.