Value Collection HCI51000800G Hex Head Cap Screw 1-8x8

Product Description

The VALUE COLLECTION HCI51000800G is a partially threaded hex head cap screw designed for heavy-duty fastening applications in structural, mechanical, and industrial assemblies. Sized at 1-8 x 8 inches with a Unified National Coarse (UNC) thread standard, this fastener is manufactured from Grade 5 steel and finished with a hot-dipped galvanized coating for corrosion resistance in demanding environments. The partial thread configuration provides a smooth shank section that improves shear load performance and allows precise clamping force distribution. Plumbers, electricians, HVAC technicians, and general contractors rely on fasteners like this for equipment mounting, structural connections, and utility installations.

This hex head cap screw is suited for use in residential and commercial construction, mechanical equipment mounting, and utility infrastructure projects where corrosion resistance and reliable clamping strength are required. The hot-dipped galvanized finish makes it appropriate for outdoor, wet, or high-humidity environments such as mechanical rooms, rooftop equipment pads, and exterior structural connections. Its Grade 5 rating indicates a medium-strength carbon steel fastener appropriate for a wide range of bolted joint applications.

Key Features

• Grade 5 steel construction provides solid tensile and yield strength for medium-duty structural and mechanical fastening
• Hot-dipped galvanized finish delivers corrosion protection suitable for outdoor and high-moisture environments
• Partially threaded shank improves shear resistance and precise clamping in bolted assemblies
• UNC thread standard ensures compatibility with standard inch-series nuts and tapped holes
• 1-8 x 8 inch sizing accommodates thick material stacks and deep structural connections
• Weighs 2.02 pounds, reflecting the substantial size and steel construction of this fastener

Compatibility

Designed as a standard inch-series hex head cap screw compatible with 1-8 UNC nuts, washers, and tapped holes conforming to Unified National Coarse thread specifications.

Installation Notes

Installation should be performed by qualified tradespeople following applicable building codes and mechanical standards. Use an appropriate hex socket or open-end wrench sized for the fastener head. Ensure mating threads and bearing surfaces are clean and free of debris before assembly. Always follow applicable load and torque guidelines specified by the equipment manufacturer or structural engineer of record for the application.