ARP 644-3250 12-Point Differential Bolt Kit 5-Piece Set

The ARP 644-3250 is a professional-grade 5-piece differential bolt kit featuring premium 12-point head design for superior wrench engagement and reduced fastener rounding. These high-performance fasteners are engineered specifically for differential and ring & pinion gear installations where reliability and strength are critical.

Key Features:

• 5-piece bolt set with included washers
• 12-point head design for improved grip and easier installation in tight spaces
• Available in ARP 300 stainless steel or heat-treated 8740 chrome moly material
• Nominally rated at 180,000 psi tensile strength
• Exceeds Grade 8 hardware specifications for maximum safety margin
• Black oxide finish on chrome moly version for corrosion resistance
• Polished finish on stainless steel version for superior rust resistance and appearance

ARP fasteners are precision-manufactured to exacting tolerances, making them the preferred choice for racing applications, performance builds, and demanding automotive repairs. The stainless steel option provides maintenance-free operation with exceptional corrosion resistance, while the chrome moly option delivers maximum strength for high-stress applications.