ARP 400-1210 Stainless Steel Exhaust Header Bolt Kit 12-Point 3/8" 16pc

ARP's 400-1210 exhaust header bolt kit delivers professional-grade fastening strength with exceptional corrosion resistance for exhaust manifold installations. Each bolt is manufactured from ARP's proprietary Stainless 300 alloy, a high-performance stainless steel that combines heat tolerance with virtually complete immunity to rust and corrosion in harsh exhaust environments.

Key Features:

• Stainless 300 proprietary alloy construction with polished finish for superior corrosion resistance
• Rated at 170,000 PSI tensile strength—substantially stronger than Grade 8 hardware
• Compact 12-point head design for improved access in tight, hard-to-reach header installations
• 3/8" diameter bolts with 1.000" under head length for consistent clamping
• Complete 16-piece kit includes premium-quality washers
• 100% manufactured in-house by ARP with rigorous quality control for zero-defect performance

This kit provides the reliability and strength required for secure exhaust header mounting while withstanding extreme heat cycling and exposure to moisture, road salt, and exhaust gases. The 12-point head design allows for multiple engagement angles, making installation easier in confined engine compartments.