Value Collection 837197PR Hex Socket Cap Screw 5/16-18 Unc

Product Description

The VALUE COLLECTION 837197PR is a fully threaded hex socket cap screw designed for general mechanical fastening applications. It features a 5/16-18 UNC thread size and a 5/8-inch length under the head, providing a reliable clamping grip in steel, aluminum, and other common structural materials. The 1/4-inch hex drive socket head is driven with a standard hex key or Allen wrench. Constructed from alloy steel with a zinc-plated finish, this fastener resists corrosion in moderate-exposure environments and meets ASTM B695 plating standards. Machinists, millwrights, fabricators, and maintenance technicians use this screw when a low-profile, high-strength fastening solution is required.

This fastener is suited for light machinery assembly, equipment frames, brackets, and fixtures where a recessed socket drive is preferred over hex-head or Phillips configurations. Fully threaded construction maximizes thread engagement across the full grip length, making it appropriate for thin-material applications or through-bolted assemblies. It is commonly used in manufacturing, HVAC equipment assembly, and general industrial maintenance contexts where consistent torque and reliable holding strength are needed. This item is sold individually but requires a minimum order quantity of 100 pieces.

Key Features

• 5/16-18 UNC thread size for broad compatibility with standard inch-series tapped holes
• 5/8-inch length under head provides adequate grip for typical bracket and frame fastening
• Fully threaded shank maximizes thread engagement across the entire fastening length
• 1/4-inch hex socket drive allows use of standard hex keys and socket tools in tight spaces
• Alloy steel construction offers higher tensile strength than standard carbon steel fasteners
• Zinc-plated finish meets ASTM B695 and provides moderate corrosion resistance in indoor environments

Compatibility

Designed as a standard 5/16-18 UNC inch-series hex socket cap screw suitable for use in any tapped hole or assembly requiring a 5/16-18 thread pitch and a 1/4-inch hex drive.

Installation Notes

Install using a 1/4-inch hex key or T-handle Allen wrench; ensure the mating tapped hole is clean and free of debris before driving. Power down or de-energize any equipment before accessing fastener locations on live machinery. Follow applicable torque specifications published in engineering references for the alloy steel grade and thread size being used. Do not use impact drivers without a proper hex-bit socket adapter rated for the drive size.