ARP 640-3500 Stainless Steel Bolt - 12-Point Kit 5-Pack

The ARP 640-3500 is a premium 5-piece bolt kit featuring high-quality stainless steel or chrome moly fasteners designed for universal automotive, marine, and trailer applications. These professional-grade bolts deliver exceptional strength and reliability for differential installations, ring and pinion setups, and a wide variety of mounting applications.

Key Features:

• Standard 12-point bolt head design for superior torque application and reduced fastener weight
• Constructed from specially alloyed ARP 300 stainless steel or heat-treated 8740 chrome moly with black oxide finish
• Nominally rated at 180,000 psi tensile strength—exceeding Grade 8 hardware specifications
• Polished stainless steel finish provides excellent corrosion resistance and maintenance-free operation
• Includes 5 bolts with matching washers
• Available in multiple sizes from 1/4" to 1/2" (or M6 to M12 metric) and lengths ranging from 1/2" to 6"

ARP fasteners are engineered to provide a substantial safety margin over standard hardware, making them ideal for high-performance and demanding applications where reliability is critical. The corrosion-resistant stainless steel construction ensures long-lasting appearance and durability in harsh environments.