Value Collection 440278PR Hex Head Cap Screw 7/16-14 X 3.5 in

Product Description

The VALUE COLLECTION 440278PR is a partially threaded hex head cap screw designed for heavy-duty mechanical and structural fastening applications. Manufactured from Grade L9 alloy steel, this screw delivers high tensile strength suitable for demanding bolted joint assemblies. It features a zinc yellow dichromate finish that provides corrosion resistance in industrial and shop environments. The 7/16-14 UNC thread and 3-1/2 inch length under head make it a common choice for securing components in equipment, machinery, and structural fabrications where reliable clamping force and thread engagement are required.

This cap screw is suited for use in industrial maintenance, manufacturing, and general mechanical assembly applications. The 7/16-14 UNC thread pattern is a standard Unified Coarse thread, widely used in fabricated steel assemblies. Partial threading allows for a smooth shank section under the head, which is preferred in applications requiring a precise clamp grip length or where shear loads are a factor. Installation is performed using a 5/8 inch hex wrench or socket. This fastener is appropriate for use by millwrights, maintenance mechanics, and fabricators working on steel equipment and machinery.

Key Features

• Grade L9 alloy steel construction for high tensile strength in critical fastening applications
• Partially threaded shank provides clean grip length and supports shear load applications
• Zinc yellow dichromate finish offers corrosion resistance in industrial environments
• 7/16-14 UNC thread standard ensures broad compatibility with standard tapped holes
• 5/8 inch hex drive for use with standard sockets and box-end wrenches
• Length under head: 3-1/2 inches, suitable for medium to heavy clamp stack applications

Compatibility

Designed as a standard inch-series hex head cap screw for use in any application requiring a 7/16-14 UNC thread with a 3-1/2 inch grip length in steel assemblies.

Installation Notes

Installation is performed by maintenance mechanics or fabricators using a 5/8 inch socket or wrench. Always de-energize and lock out equipment before servicing any fastened assembly. Ensure mating threaded holes are clean and free of debris before installation. Do not exceed recommended torque specifications for the Grade L9 fastener class as defined by the applicable engineering standard for the assembly.