Value Collection HHCSI20620250-020BX Hex Head Bolt

Product Description

The VALUE COLLECTION HHCSI20620250-020BX is a partially threaded hex head bolt sized 5/8-11 UNC with a 2-1/2 inch length under head. Manufactured from steel to ASTM A307 Grade A307 standards, this bolt delivers dependable clamping strength for structural and general construction fastening applications. The bright uncoated finish is standard for indoor and covered installations where corrosion exposure is minimal. Electricians, plumbers, HVAC mechanics, and general contractors routinely use A307 bolts when anchoring equipment, pipe supports, duct hangers, and electrical enclosures to structural steel or wood framing.

This bolt is suited for residential and light commercial construction, mechanical room installations, and equipment mounting applications where ASTM A307 fastener compliance is required. The partial threading allows the unthreaded shank to bear shear loads in lap joints and through-bolted connections, making it a practical choice for framing connections, pipe hanger rods, and support brackets. It installs using standard hex wrenches or impact drivers with a 15/16-inch socket.

Key Features

• 5/8-11 UNC thread size for compatibility with standard hex nuts and threaded inserts
• 2-1/2 inch length under head for through-bolting medium-thickness structural members
• Partially threaded shank provides shear resistance in lap and bearing connections
• ASTM A307 Grade A307 certified for structural and mechanical fastening applications
• Bright uncoated finish on steel construction for consistent dimensional tolerances
• Inch measurement system for compatibility with standard US fastener tooling

Compatibility

Designed as a standard UNC hex head bolt compatible with 5/8-11 hex nuts, flat washers, and lock washers conforming to inch-series fastener standards.

Installation Notes

Installation is performed by licensed mechanics, electricians, or plumbers depending on the application. Always de-energize and lock out equipment before fastening or removing hardware on electrical or mechanical systems. Use a properly sized 15/16-inch wrench or socket and apply a flat washer and nut to the threaded end to achieve proper clamping force. Consult applicable codes such as the IBC or AISC specifications for minimum bolt torque and edge-distance requirements on structural connections.