Value Collection 403092PR Hex Head Cap Screw 5/16-18 X 6 in

Product Description

The VALUE COLLECTION 403092PR is a partially threaded hex head cap screw designed for general-purpose mechanical fastening in structural and industrial assemblies. Built to Grade 2 steel standards with a zinc-plated finish, this fastener measures 5/16-18 thread size with a 6-inch length under the head. The zinc coating provides basic corrosion resistance for indoor and light-duty outdoor use. It follows the Unified National Coarse (UNC) thread standard and is driven with a 1/2-inch hex key or wrench. Installation is straightforward and suits a wide range of fabrication, maintenance, and equipment assembly applications.

This screw is used in residential and commercial mechanical assemblies where a long, partially threaded fastener is needed to join materials while allowing thread engagement only near the clamping point. Common applications include equipment mounting, steel fabrication, HVAC brackets, and general structural assembly. The partial threading is particularly useful when clamping two materials together without thread engagement through the full shank length. Sold in a minimum order quantity of 50 pieces with a package quantity of 1.

Key Features

• 5/16-18 UNC thread for compatibility with standard inch-system tapped holes
• 6-inch length under head accommodates deep stack or long-reach fastening applications
• Partially threaded shank allows clamping force without full-length thread engagement
• Grade 2 steel construction meets general-purpose mechanical strength requirements
• Zinc-plated finish provides basic corrosion resistance for indoor and light-exposure environments
• 1/2-inch hex drive compatible with standard wrenches and sockets

Compatibility

Designed as an OEM-style replacement or standard-use fastener compatible with any 5/16-18 UNC tapped hole requiring a partially threaded hex head cap screw with a 6-inch length under head.

Installation Notes

Installation should be performed by a qualified mechanic, millwright, or maintenance technician familiar with inch-standard fastener torque practices. Ensure the mating tapped hole is clean and free of debris before threading. Do not exceed recommended torque for Grade 2 steel fasteners at this thread size, and consult applicable mechanical or structural codes for the specific assembly. Apply thread lubricant or anti-seize as required by the application environment.