Header Bolt Kit - 6pt. 3/8 x .875 UHL (12)

The Header Bolt Kit - 6pt. 3/8 x .875 UHL (12) by ARP represents precision fastening engineered for high-performance engine builds and restoration work in tactical and military vehicle platforms. These premium bolts are critical components in cylinder head assembly, where reliability under sustained stress directly impacts mission readiness and durability. Whether you're servicing small-block V8s, inline engines, or rebuilding powerplants in duty vehicles, this kit delivers the fastening integrity demanded by professionals who depend on equipment that won't fail.

ARP's 6-point bolt design maximizes load distribution across the fastener head, reducing the risk of stripping or shearing under extreme combustion pressures and thermal cycling. The 3/8-inch diameter with .875-inch under-the-head (UHL) length specification ensures proper clamping force in standard head configurations, while the chrome-molybdenum alloy construction provides superior tensile strength compared to standard hardware-store fasteners. Each bolt in this 12-pack kit meets or exceeds OEM specifications, with consistent quality control that eliminates weak points in critical engine assemblies.

Technicians and mechanics working on tactical vehicles, field service units, and precision engine rebuilds benefit from the reliability and consistency this kit provides during assembly and re-assembly cycles. Installation follows standard engine builder protocols: torque bolts in sequence, apply light oil to threads, and follow manufacturer-specific patterns for your particular engine platform. This 12-bolt configuration suits single-cylinder head applications or partial replacement sets, making it an essential component for inventory in any tactical equipment or military motor pool maintenance facility.