Value Collection 872251PR Hex Socket Cap Screw 3/8-16 Unc

Product Description

The VALUE COLLECTION 872251PR is a hex socket cap screw designed for applications requiring a secure, high-strength threaded fastener. Sized at 3/8-16 UNC with a 3/4-inch length under the head, this screw is fully threaded and driven by a 5/16-inch hex key. It is manufactured from alloy steel and finished with a zinc plating that provides basic corrosion resistance. This fastener meets ASME B18.8 and ASTM A574 standards, making it appropriate for structural and mechanical assemblies where tensile strength and dimensional consistency are required. Machinists, millwrights, maintenance technicians, and fabricators are the typical end users.

This screw suits a wide range of industrial and mechanical applications including machine assembly, jig and fixture building, equipment mounting, and general manufacturing maintenance. The 3/8-16 UNC thread is one of the most common coarse-thread sizes found in North American mechanical assemblies, making this fastener compatible with a broad range of tapped holes in steel, aluminum, and cast iron components. It is suited for both shop fabrication environments and field service work.

Key Features

• 3/8-16 UNC coarse thread for broad compatibility with standard tapped holes
• Fully threaded body maximizes thread engagement across the entire 3/4-inch length under head
• Alloy steel construction meets ASTM A574 high-strength socket screw requirements
• Zinc plating provides basic corrosion protection for general indoor and sheltered applications
• 5/16-inch hex drive for use with standard hex keys and socket drivers
• Conforms to ASME B18.8 dimensional standards for consistent fit and interchangeability

Compatibility

Designed as a standard 3/8-16 UNC hex socket cap screw for use in any application requiring an ASME B18.8 and ASTM A574 compliant fastener in a tapped or through-hole assembly.

Installation Notes

Installation requires a 5/16-inch hex key or Allen-style socket driver. Ensure the mating tapped hole is clean and free of debris before threading to avoid cross-threading or galling. Verify the zinc-plated finish is acceptable for the service environment, as zinc plating offers limited protection in wet or chemically aggressive conditions. Always de-energize or lock out equipment before servicing fastened assemblies on powered machinery.