Value Collection HCI51120750G Hex Cap Screw 1-1/8-7 Grade 5

Product Description

The VALUE COLLECTION HCI51120750G is a partially threaded hex head cap screw engineered for heavy-duty fastening applications in structural, mechanical, and industrial assemblies. This fastener measures 1-1/8-7 UNC thread size with a 7-1/2 inch length under head and is manufactured from Grade 5 steel with a hot-dipped galvanized finish for corrosion resistance in exposed or outdoor environments. The partial threading allows the unthreaded shank to bear shear loads, making it well suited for bolted connections where shear strength is a priority alongside tensile load capacity.

This hex cap screw is used in structural steel connections, heavy equipment assembly, HVAC equipment mounting, and general industrial fabrication where inch-series UNC fasteners are specified. Its 1-1/8-7 coarse thread pitch is a standard industrial size commonly used by ironworkers, millwrights, pipefitters, and mechanical contractors. The hot-dipped galvanized coating makes it appropriate for outdoor installations, rooftop equipment pads, condenser mounting frames, and other corrosion-prone environments.

Key Features

• Grade 5 steel construction for high tensile strength in heavy-duty fastening
• Hot-dipped galvanized finish provides durable corrosion protection for outdoor and exposed installations
• Partially threaded shank handles shear loads in addition to tensile loads
• 1-1/8-7 UNC coarse thread standard for broad tool and hardware compatibility
• 7-1/2 inch length under head accommodates thick structural members and stacked assemblies

Compatibility

Designed as a standard inch-series UNC hex head cap screw suitable for use in structural, mechanical, and industrial fastening applications where a 1-1/8-7 Grade 5 partially threaded fastener is specified.

Installation Notes

Installation is performed by mechanical contractors, ironworkers, or maintenance technicians using appropriately sized hex wrenches or impact sockets rated for the fastener size. Always consult applicable structural or equipment specifications for required torque values before installation. Hot-dipped galvanized fasteners should be paired with compatible galvanized or zinc-plated nuts and washers to prevent accelerated galvanic corrosion. Inspect threads and coating for damage before installation and do not install fasteners with compromised coatings in corrosive environments.