Value Collection 403082PR Hex Head Cap Screw 5/16-18

Product Description

The VALUE COLLECTION 403082PR is a 5/16-18 x 3-3/4 inch hex head cap screw made from Grade 2 steel with a zinc-plated finish. It features Unified National Coarse (UNC) threading and is partially threaded along its shank. The zinc plating provides a basic layer of corrosion resistance suitable for general-purpose indoor and light-duty fastening applications. This fastener weighs approximately 0.088 pounds. It is installed using a 1/2-inch hex key or wrench and is appropriate for mechanical assemblies, structural connections, and equipment fabrication work performed by maintenance technicians, millwrights, and general tradespeople.

This cap screw is suited for general mechanical and structural fastening tasks in residential, commercial, and light industrial settings. Typical applications include equipment mounting, bracket assembly, fixture installation, and general hardware repairs where a partially threaded shank is needed to draw mating parts together with a clamping load. The 5/16-18 UNC thread is one of the most common inch-series thread sizes found across a wide range of manufactured equipment and fabricated assemblies.

Key Features

• 5/16-18 UNC thread size for broad compatibility with standard inch-series tapped holes
• 3-3/4 inch length under head accommodates thicker material stacks or longer grip lengths
• Partially threaded shank provides positive clamping between joined parts
• Grade 2 steel construction meets standard tensile requirements for general-purpose fastening
• Zinc-plated finish offers basic corrosion resistance for typical indoor service environments
• 1/2-inch hex drive compatible with standard wrenches and sockets

Compatibility

Designed as a general-purpose inch-series hex head cap screw compatible with any standard 5/16-18 UNC tapped hole or matching hex nut in typical mechanical and structural assemblies.

Installation Notes

Installation requires a 1/2-inch open-end, box-end, or socket wrench. Ensure the mating tapped hole or nut is clean and free of debris before threading. Do not over-torque Grade 2 fasteners, as they have lower proof load ratings than Grade 5 or Grade 8 hardware. Follow applicable equipment manufacturer specifications and relevant mechanical codes when using fasteners in structural or pressure-retaining applications.