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The BOWMALLOY BOW36029 is a fully threaded hex head cap screw engineered for high-strength fastening applications where dependable clamping force is required. Built to Grade 9 steel specifications, this fastener delivers superior tensile strength compared to standard Grade 5 or Grade 8 hardware. The 5/16-18 thread size with a 1-inch length under head makes it a practical choice for structural, mechanical, and equipment assembly work. The Bowma-Guard zinc-plated clear chromate finish provides corrosion resistance suitable for general industrial and trade environments. Installers in HVAC, plumbing, electrical, and mechanical trades will encounter this fastener in equipment mounting, bracket assembly, and panel attachment tasks.
This cap screw is suited for applications requiring a high-strength inch-series fastener in steel construction. The fully threaded shank allows maximum thread engagement across the full grip length, making it appropriate for through-bolt or thin-material applications. It is commonly used in equipment fabrication, mechanical assembly, and structural connections where Grade 9 strength is specified by the design or maintenance standard.
Designed for use in standard 5/16-18 UNC tapped holes or with matching hex nuts in inch-series mechanical and structural assemblies requiring Grade 9 fastener strength.
Installation requires a standard hex head wrench or socket set sized for a 5/16-inch hex cap screw. Always verify thread engagement depth and material compatibility before torquing. Follow applicable industry standards and equipment manufacturer specifications for proper torque values. Do not mix metric and inch-series fasteners in the same assembly.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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