Value Collection 872215PR Hex Socket Cap Screw 5/16-18 Unc

Product Description

The VALUE COLLECTION 872215PR is a hex socket cap screw designed for high-strength fastening applications across mechanical, industrial, and trade assembly work. Machined from alloy steel with a zinc-plated finish for corrosion resistance, this screw features a 5/16-18 UNC thread and a 2.5-inch length under the head. The 1/4-inch hex drive accepts a standard hex key or Allen driver. Partial threading allows for clamping force in through-bolt and tapped-hole installations. This screw meets ASME B18.8 and ASTM A574 standards, making it suitable for load-bearing fastener applications requiring documented mechanical performance.

This cap screw is used in general mechanical assembly, equipment mounting, and structural fastening in residential and commercial trade work. Common applications include HVAC equipment assembly, electrical enclosure mounting, plumbing bracket installation, and general fabrication. The 5/16-18 UNC thread is a widely used coarse-thread standard, compatible with correspondingly tapped holes or hex nuts of the same thread specification. Installers working on metal-to-metal connections will find the alloy steel construction suitable for moderate to high clamp-load requirements.

Key Features

• 5/16-18 UNC coarse thread for use in standard tapped holes and with matching hex nuts
• 2.5-inch length under head with partial threading for positive clamping in through-hole applications
• 1/4-inch hex socket drive — compatible with standard Allen keys and hex bit drivers
• Alloy steel construction meets ASTM A574 for high tensile strength fastener requirements
• Zinc-plated finish provides baseline corrosion resistance in dry or mildly humid environments
• Compliant with ASME B18.8 dimensional standards for socket cap screws

Compatibility

Designed as a standard ASME B18.8 hex socket cap screw suitable for any tapped hole or fastener assembly calling for a 5/16-18 UNC partially threaded socket cap screw with a 2.5-inch length under head.

Installation Notes

Installation requires a 1/4-inch hex key or socket hex bit driver. Ensure the mating tapped hole is clean and free of debris before driving to avoid cross-threading. Power down or de-energize any equipment before performing fastener work on live assemblies. Do not exceed the rated torque specification for the application material — consult the equipment manufacturer or applicable ASME standards for torque values.