Value Collection 015223PR Hex Socket Cap Screw 5/16-18

Product Description

The VALUE COLLECTION 015223PR is a hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, tooling fixtures, and structural connections. This screw features a 5/16-18 UNC thread size, a 3-1/2-inch length under head, and a 1/4-inch hex drive socket. It is manufactured from alloy steel and finished with a black oxide coating that provides mild corrosion resistance and reduces light glare on the fastener surface. Partially threaded along its shank, it is suited for applications where clamping force and shear load distribution are priorities. Machinists, millwrights, and maintenance technicians are the typical installers.

This fastener is appropriate for use in both light industrial and heavy-duty mechanical applications where a recessed hex drive is required for torquing in confined spaces or flush-mount installations. The 5/16-18 UNC coarse thread pattern offers reliable thread engagement in steel, cast iron, and aluminum tapped holes. It is commonly used in machine frames, jigs, fixtures, and equipment panels across manufacturing and maintenance environments. Minimum order quantity is 5 units; package quantity is 1.

Key Features

• 5/16-18 UNC coarse thread for reliable engagement in standard tapped holes
• 3-1/2-inch length under head accommodates deeper fastening requirements
• 1/4-inch hex socket drive allows use of standard Allen keys and hex bit drivers
• Partially threaded shank provides improved shear strength and clamping performance
• Alloy steel construction delivers high tensile and yield strength
• Black oxide finish offers mild corrosion resistance and a low-reflectance surface
• Meets ASME/ANSI B18.3, ASTM A574, and IFI 124 fastener standards

Compatibility

Designed as a standard replacement or specification fastener for any application requiring a 5/16-18 UNC hex socket cap screw with a 3-1/2-inch length under head and 1/4-inch drive, conforming to ASME/ANSI B18.3 dimensional standards.

Installation Notes

Installation is performed by machinists, millwrights, or maintenance technicians using a 1/4-inch hex key or hex bit driver. Ensure the receiving threaded hole is clean, properly tapped to 5/16-18 UNC, and free of debris before driving the fastener. Apply thread lubricant or thread-locking compound as required by the assembly specification. Do not exceed the rated torque for the thread size and material combination as defined in applicable fastener standards.