Value Collection KP44022 5/16-18 X 1-1/4 in Grade 8 Hex Cap Screw

Product Description

The VALUE COLLECTION KP44022 is a fully threaded hex head cap screw designed for high-strength mechanical fastening applications. Sized at 5/16-18 UNC thread with a 1-1/4 inch length under the head, this fastener meets ASTM A354 BD standards, placing it in the Grade 8 strength category. The zinc-plated finish provides a base level of corrosion resistance suitable for general indoor and light-duty outdoor assemblies. Each package contains 100 pieces, making it practical for production work, service fleets, or shop stock replenishment. Installers working in HVAC, mechanical, plumbing support structures, or general fabrication will find this a standard workhorse fastener.

This screw is appropriate for use in residential and light commercial mechanical assemblies where a UNC 5/16-18 fully threaded fastener is specified. Common applications include equipment mounting brackets, ductwork support hardware, electrical enclosure assembly, pipe hanger components, and structural connections on service equipment. The Grade 8 rating makes it suitable where higher clamp load or shear resistance is required compared to Grade 2 or Grade 5 fasteners. Sold in a 100-piece package to support ongoing shop or field inventory needs.

Key Features

• Grade 8 steel construction meets ASTM A354 BD standard for high-strength fastening
• Fully threaded along the 1-1/4 inch length under head for maximum thread engagement
• 5/16-18 UNC thread for compatibility with standard inch-measurement tapped holes and nuts
• Zinc-plated finish for basic corrosion resistance in typical indoor service environments
• 100-piece package quantity supports production, fleet service, and shop stock applications

Compatibility

Designed as a standard UNC inch-series hex head cap screw for use with any 5/16-18 tapped hole, nut, or threaded insert requiring a Grade 8 fastener per ASTM A354 BD specifications.

Installation Notes

Installation is performed using a standard hex wrench or socket drive sized for a 5/16-18 hex head cap screw. Always verify the mating thread specification and material grade requirement before installation to ensure the fastener meets the load requirements of the joint. De-energize and de-pressurize any equipment before accessing fastened assemblies during service. Follow applicable mechanical and structural codes for torque and joint design requirements.