Hex Head Bolt 1/2-20 x 1-1/2 Grade 5 5pk

The Allstar Performance Hex Head Bolt 1/2-20 x 1-1/2 Grade 5 5-pack (SKU ALL 16484) is a precision fastening solution engineered for high-stress mechanical applications where thread security and shear strength are non-negotiable. Grade 5 steel construction delivers superior tensile strength compared to standard bolts, making this set essential for assembly, repair, and fabrication work in automotive, powersports, and industrial maintenance environments.

Each bolt in this set features a 1/2-20 thread specification—a metric-equivalent UNC fastener standard—with a 1-1/2 inch length optimized for mid-range penetration depth without excessive protrusion. The 3/4-inch hex head provides adequate wrench engagement surface and leverage without over-tightening risk. Zinc oxide plating offers baseline corrosion resistance suitable for controlled indoor and light outdoor exposure; applications requiring enhanced salt-air or moisture resistance may benefit from additional corrosion protection. The five-pack format supports multiple fastening points or provides field redundancy for critical assemblies.

This fastener set serves mechanics, fabricators, restoration specialists, and equipment maintenance professionals who require repeatable, code-compliant hardware for mechanical systems. The Grade 5 rating meets or exceeds SAE J429 standards, ensuring predictable load-carrying capacity and vibration resistance under dynamic conditions. Whether securing engine components, frame attachments, or structural joints, this bolt pack delivers the tensile reliability demanded by precision work.

Allstar Performance specializes in fastening and hardware for high-performance automotive and powersports applications. Maintaining a stock of Grade 5 hex bolts in common thread and length combinations eliminates field delays and ensures assembly integrity across rebuild and repair operations.