Value Collection HCI50870150G Hex Cap Screw 7/8-9 Grade 5 Galvanized

Product Description

The VALUE COLLECTION HCI50870150G is a fully threaded hex head cap screw designed for heavy-duty mechanical and structural fastening applications. Manufactured from Grade 5 steel with a hot-dipped galvanized finish, this fastener delivers solid corrosion resistance in outdoor, wet, or high-humidity environments. The 7/8-9 UNC thread and 1-1/2 inch length under head make it a common choice across a wide range of industrial, HVAC equipment mounting, and mechanical assembly tasks. Tradespeople and maintenance professionals rely on Grade 5 fasteners like this one where moderate tensile strength and corrosion protection are both required.

This hex head cap screw is suited for use in equipment installation, mechanical assembly, structural connections, and general maintenance work. Its fully threaded shank allows maximum thread engagement across the full length of the fastener, which is useful when working with thinner materials or when maximum clamp load distribution is needed. The hot-dipped galvanized coating makes it appropriate for outdoor installations, rooftop HVAC equipment mounting, pool mechanical enclosures, and similar environments where bare steel fasteners would corrode prematurely.

Key Features

• Grade 5 steel construction for reliable tensile strength in general mechanical and structural applications
• Hot-dipped galvanized finish provides heavy-duty corrosion protection suitable for outdoor and wet environments
• Fully threaded shank for maximum thread engagement and clamping performance
• 7/8-9 UNC thread standard ensures wide compatibility with standard nuts, tapped holes, and threaded inserts
• 1-1/2 inch length under head suits a broad range of fastening depths

Compatibility

Designed as a standard UNC hex head cap screw compatible with 7/8-9 threaded nuts, threaded inserts, and tapped holes conforming to inch-series UNC thread standards.

Installation Notes

Installation is performed by maintenance technicians, millwrights, HVAC mechanics, and plumbers using standard hex wrenches or sockets sized for a 7/8-9 hex head fastener. Always verify that the mating nut, insert, or tapped hole matches the UNC thread specification before installation. Follow applicable torque guidelines for Grade 5 fasteners from a current fastener standards reference rather than relying on estimated values. When installing in outdoor or corrosive environments, inspect the galvanized coating for damage before use to ensure full corrosion protection is maintained.