Value Collection HCI51000650G Hex Head Cap Screw Grade 5

Product Description

The Value Collection HCI51000650G is a partially threaded hex head cap screw designed for heavy-duty fastening in structural and mechanical applications. It is manufactured from Grade 5 steel and finished with a hot-dipped galvanized coating that provides corrosion resistance in exposed or outdoor environments. The screw measures 1-8 thread size with a 6.5-inch length under head and follows the UNC thread standard. This fastener is commonly installed by ironworkers, millwrights, plumbers, and general contractors where a reliable, high-strength bolted connection is required.

This cap screw is well suited for structural assemblies, equipment mounting, and heavy framing work in both residential and commercial construction. The partial threading allows for a smooth shank section that seats cleanly through clearance holes, providing improved shear strength in bolted joint applications. The UNC thread form is the most common inch-series standard, making mating hardware widely available.

Key Features

• Grade 5 steel construction provides high tensile strength for demanding fastening applications
• Hot-dipped galvanized finish delivers corrosion resistance suitable for outdoor and wet environments
• Partially threaded shank improves shear resistance in structural bolted connections
• UNC thread standard ensures compatibility with widely available hex nuts and washers
• 1-8 thread size and 6.5-inch length under head suited for thick material assemblies

Compatibility

Designed as a standard inch-series UNC hex head cap screw compatible with 1-8 UNC hex nuts, flat washers, and lock washers used in structural and mechanical fastening applications.

Installation Notes

Installation is performed using a standard hex wrench, impact driver, or ratchet with the appropriate socket size. Always power down and de-energize any associated equipment before fastening into electrical or mechanical enclosures. Torque to values specified by the project engineer or applicable structural code for Grade 5 fasteners. Inspect the galvanized coating for damage before installation and avoid contact with dissimilar metals that may cause galvanic corrosion.