SKU: SCH3006-12
MPN: 3006-12
The Header Bolt 3/8-16x3/4in 5/16 Head 12pk from SCHOENFELD is a precision fastener engineered for high-performance engine applications, particularly headers and exhaust manifold assemblies where vibration resistance and reliability are non-negotiable. Built for serious enthusiasts and professional mechanics who demand components that withstand extreme thermal cycling and mechanical stress, this 12-pack provides the redundancy and replacement stock required for both initial builds and long-term maintenance. Header bolts are critical fasteners that secure headers to cylinder heads—a joint subjected to thousands of temperature swings, expansion cycles, and vibration loads that demand superior holding power.
These bolts feature a 3/8-16 thread specification with a 0.75-inch length and 5/16-inch hex head, delivering the exact dimensional profile required for OEM and aftermarket header applications. Manufactured from steel, they provide the tensile strength and thermal stability necessary to maintain clamping force as engine temperatures fluctuate between ambient and peak operating conditions. The 5/16-inch hex head offers sufficient contact area for secure wrench engagement without stripping, critical when achieving proper torque specs on sensitive aluminum cylinder head castings. The compact 0.3-pound package weight per 12-pack reflects genuine fastener density—no padding, just functional steel ready for installation.
Professional engine builders, automotive technicians, and high-performance enthusiasts benefit most from keeping dedicated Header Bolt 3/8-16x3/4in 5/16 Head fasteners in inventory, as lost or stripped fasteners during header work can derail entire rebuild schedules. The 12-pack quantity supports multiple repair cycles or complete engine builds without requiring emergency parts runs. Installation requires standard metric fastening tools and adherence to manufacturer torque specifications to prevent head gasket leakage and exhaust bypass—proper fastener selection directly impacts engine seal integrity and performance longevity.
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