Value Collection HCI51250350G Hex Head Cap Screw Grade 5

Product Description

The VALUE COLLECTION HCI51250350G is a fully threaded hex head cap screw designed for heavy-duty fastening applications where corrosion resistance is required. It measures 1-1/4-7 UNC thread size with a 3-1/2-inch length under head, manufactured from Grade 5 steel with a hot-dipped galvanized finish. The hot-dipped galvanized coating provides a thick, durable zinc layer that resists rust and corrosion in outdoor, wet, or chemically exposed environments. This fastener is suited for structural, mechanical, and industrial assembly work performed by contractors, millwrights, plumbers, and general tradespeople.

This cap screw is used in applications requiring a coarse UNC thread pattern and full-thread engagement along the entire shank. Typical uses include structural steel connections, equipment mounting, pipe support bracketing, and general mechanical assembly in residential, commercial, and industrial settings. The Grade 5 material specification meets standard medium-carbon steel strength requirements, making it appropriate for moderate to high-load fastening tasks where a hot-dipped galvanized finish is specified.

Key Features

• Fully threaded shank provides maximum thread engagement for secure fastening
• Hot-dipped galvanized finish delivers superior corrosion resistance over electroplated alternatives
• Grade 5 steel construction meets standard medium-strength bolt specifications
• UNC (Unified National Coarse) thread standard for broad compatibility with standard nuts and tapped holes
• 1-1/4-7 thread size and 3-1/2-inch length suited for heavy structural and mechanical fastening

Compatibility

Designed as an OEM-style replacement or direct-use fastener compatible with standard 1-1/4-7 UNC hex nuts, washers, and tapped holes conforming to Unified National Coarse thread standards in inch-measurement fastener systems.

Installation Notes

Installation is typically performed by licensed contractors, millwrights, or journeymen mechanics using standard hex drive tools or impact wrenches sized for 1-1/4-inch fasteners. Always ensure mating threads are clean and free of debris before installation. Follow applicable structural or mechanical codes for torque requirements based on joint type and load specifications. Do not reuse fasteners that show thread damage, corrosion, or deformation.