Armor Coat UST235940 Socket Cap Screw 5/16-18 1 in

Product Description

The ARMOR COAT UST235940 is a 5/16-18 socket cap screw designed for high-strength fastening applications in mechanical, structural, and industrial assemblies. Manufactured from alloy steel with an Armor Coat finish for corrosion resistance, this screw features a socket cap head driven by a 1/4-inch hex key. The 1-inch length under head and fully threaded shank make it suitable for through-hole and tapped-hole connections where maximum thread engagement is required. Conforms to ASME B18.3 standards. This fastener is installed by machinists, millwrights, pipefitters, and general maintenance trades across a wide range of service environments.

This socket cap screw is used in equipment assembly, machine guarding, fixture fabrication, and general mechanical maintenance where a low-profile, high-torque fastener is needed. The hex socket drive allows for installation in tight or recessed spaces where a standard hex head wrench cannot reach. Fully threaded construction provides consistent clamping force along the entire shank length, making it well suited for shallow tapped holes and thin material applications.

Key Features

• 5/16-18 thread size for use with standard UNC tapped holes
• 1-inch length under head, fully threaded for maximum thread engagement
• Alloy steel construction for high tensile strength
• Armor Coat finish provides corrosion resistance in demanding environments
• 1/4-inch hex socket drive for installation with a standard hex key or hex bit driver
• Meets ASME B18.3 fastener standard

Compatibility

Designed as a standard UNC socket cap screw for use in any application requiring a 5/16-18 tapped hole with a 1-inch length under head fastener per ASME B18.3.

Installation Notes

Install using a 1/4-inch hex key or hex bit driver rated for the required torque. Ensure the tapped hole is clean and free of debris before threading. Do not exceed the rated torque for the thread size and material grade to avoid stripping threads or fastener failure. Always verify thread engagement depth meets the requirements of the joint design before final tightening.