Value Collection KP44033 Hex Head Cap Screw 5/16-18 X 4 in Grade 8

Product Description

The VALUE COLLECTION KP44033 is a Grade 8 steel hex head cap screw designed for high-strength fastening applications in mechanical, structural, and industrial assemblies. Measuring 5/16-18 x 4 inches with length measured under the head, this fastener features a Unified National Coarse (UNC) thread form and a partially threaded shank. The zinc-plated finish provides basic corrosion resistance for general service environments. Compliance with ASTM A354 BD confirms the material meets defined tensile, yield, and proof load requirements. Sold in packages of 25, this screw is suited for high-volume maintenance and repair work.

This cap screw is used across a wide range of trade and industrial applications where a reliable, high-strength threaded fastener is needed. Typical uses include equipment mounting, structural connections, HVAC equipment supports, plumbing fixture anchoring, and general mechanical assembly. The partially threaded shank provides a bearing surface on thicker material joints, making it appropriate where full thread engagement through both members is not required or desired.

Key Features

• Grade 8 steel construction meets ASTM A354 BD for high tensile and proof load strength
• 5/16-18 UNC thread size with 4-inch length under head for use in thicker assemblies
• Partially threaded shank provides a shank bearing surface for bolted joint applications
• Zinc-plated finish offers basic corrosion resistance for general indoor and sheltered outdoor use
• Packaged in quantities of 25 for shop stock and maintenance inventory

Compatibility

Designed as a standard UNC hex head cap screw for use with any 5/16-18 threaded hole or nut conforming to inch-series fastener standards.

Installation Notes

Installation is performed by maintenance technicians, millwrights, or trade professionals using standard hex wrenches or socket sets sized for the hex head. Always inspect mating threads for damage before installation and ensure proper thread engagement. Torque to values specified by the equipment manufacturer or applicable structural standard for Grade 8 fasteners of this diameter. Do not exceed torque specifications, as over-torquing can cause fastener or joint failure.