Value Collection HCI51000350G-010BX Hex Head Cap Screw

Product Description

The VALUE COLLECTION HCI51000350G-010BX is a partially threaded hex head cap screw engineered for heavy-duty mechanical and structural fastening applications. Built from Grade 5 steel with a hot-dipped galvanized finish, this fastener delivers solid corrosion resistance in outdoor, wet, or high-humidity environments. The 1-8 UNC thread specification and 3.5-inch length under head make it suitable for clamping thick assemblies where full threading would compromise clamping force. Weighing approximately 1.02 pounds, this screw is sized for substantial load-bearing connections. Plumbers, electricians, HVAC technicians, and general contractors reach for Grade 5 galvanized hardware when code-compliant, corrosion-resistant connections are required on structural supports, equipment mounting, and utility framing.

This hex head cap screw is used across residential and commercial trade applications including equipment pad anchoring, strut and unistrut channel assembly, conduit support framing, mechanical room equipment mounting, and structural connections exposed to moisture. The partially threaded shank provides a smooth bearing surface that resists fastener rotation under vibration, making it appropriate for equipment installations subject to operational movement. It is sold individually with a minimum order quantity of one unit.

Key Features

• Grade 5 steel construction provides rated tensile and proof load strength for structural fastening
• Hot-dipped galvanized finish delivers corrosion resistance for outdoor and high-moisture environments
• Partially threaded shank maintains a smooth clamping zone to maximize clamping force and resist rotation
• 1-8 UNC thread standard ensures compatibility with standard inch-series nuts and tapped holes
• 3.5-inch length under head accommodates thick material stacks and multi-layer assemblies

Compatibility

Designed for use with standard 1-inch UNC nuts, washers, and tapped holes following inch-series fastener standards. Suitable for structural and mechanical fastening applications requiring Grade 5 or equivalent hardware.

Installation Notes

Installation is performed with a standard hex wrench or impact driver fitted with the appropriate socket size. Always use a flat washer under the head to distribute clamping load and protect mating surfaces. Follow applicable structural or mechanical codes when specifying fastener grade for load-bearing connections. Inspect the galvanized coating for damage before installation; compromised coating reduces corrosion protection in exposed environments.