Value Collection 403050PR Hex Cap Screw 1/4-20 X 6 in Grade 2

Product Description

The VALUE COLLECTION 403050PR is a 1/4-20 partially threaded hex head cap screw designed for general-purpose fastening in industrial, mechanical, and trade applications. Measuring 6 inches under the head, this fastener is manufactured from Grade 2 steel with a zinc-plated finish that provides basic corrosion resistance. The Unified National Coarse (UNC) thread standard ensures broad compatibility with standard tapped holes and nuts. A 7/16-inch hex key size makes it straightforward to install with common hand or power tools. This screw is sold individually with a minimum order quantity of 100 pieces, making it suited for contractors and shops stocking fasteners in bulk.

This cap screw is appropriate for light to medium-duty structural and mechanical assembly work where Grade 2 steel meets load requirements. Typical applications include equipment framing, brackets, junction box mounting, utility fixtures, and general maintenance repairs across HVAC, plumbing, and electrical trade settings. The partial threading allows for clamping force across unthreaded shank length, which is useful when joining materials of varying thickness.

Key Features

• 1/4-20 UNC thread for compatibility with standard fastener hardware
• 6-inch length under head with partial threading for clamping versatility
• Grade 2 steel construction for general-purpose load applications
• Zinc-plated finish for basic corrosion protection
• 7/16-inch hex drive for use with standard wrenches and sockets
• Sold in multiples of 100 — practical for bulk fastener inventory

Compatibility

Designed as a standard 1/4-20 UNC hex head cap screw compatible with any tapped hole, hex nut, or coupling nut conforming to the Unified National Coarse thread standard in the 1/4-20 size.

Installation Notes

Installation is performed with a 7/16-inch wrench, socket, or hex driver. Ensure the mating hole or nut is tapped to 1/4-20 UNC before fastening. Do not overtighten Grade 2 fasteners beyond their rated proof load, as this grade is not intended for high-torque or high-strength structural applications where Grade 5 or Grade 8 hardware is specified. Follow applicable mechanical codes and equipment manufacturer guidelines when selecting fastener grade for load-bearing assemblies.