Armor Coat UST235969 Hex Socket Cap Screw 3/8-16 Unc

Product Description

The ARMOR COAT UST235969 is a hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, equipment maintenance, and industrial installations. Threaded at 3/8-16 UNC with a 5/16-inch hex drive, this screw measures 5 inches under the head and is partially threaded along its length. The alloy steel construction provides the tensile strength needed for demanding load-bearing connections. The Armor Coat finish adds corrosion resistance suitable for harsh or outdoor service environments. This fastener meets ASME B18.3 standards, making it a reliable choice for spec-driven work where dimensional accuracy is required.

This socket cap screw is used wherever a recessed hex drive is preferred over external-drive fasteners, particularly in close-clearance locations where a wrench or external socket cannot reach. Common applications include mechanical equipment mounting, pump and motor assemblies, structural brackets, and field repair work across HVAC, plumbing, and general industrial maintenance. The partial threading provides clamping engagement appropriate for standard through-bolt and tapped-hole configurations at the 3/8-16 UNC thread specification.

Key Features

• 3/8-16 UNC thread size for broad compatibility with standard tapped holes
• 5 inches length under head with partial threading for solid clamping grip
• 5/16-inch hex socket drive allows torquing in tight or recessed spaces
• Alloy steel construction provides high tensile strength for load-bearing applications
• Armor Coat finish delivers corrosion resistance in harsh or outdoor environments
• Meets ASME B18.3 fastener standard for dimensional consistency

Compatibility

Designed as a standard ASME B18.3 hex socket cap screw for use in any tapped or through-hole application requiring a 3/8-16 UNC thread and 5/16-inch internal hex drive.

Installation Notes

Installation requires a 5/16-inch hex key or Allen-style driver rated for the fastener size. Ensure the mating tapped hole is clean, properly threaded to 3/8-16 UNC, and free of debris before driving. Follow applicable torque specifications from the equipment manufacturer or relevant standards for alloy steel fasteners of this diameter. Always de-energize and isolate equipment before disassembling or re-fastening mechanical components.