Armor Coat UST236002 Hex Socket Cap Screw 1/2-13 Unc

Product Description

The ARMOR COAT UST236002 is a hex socket cap screw designed for high-strength fastening applications in mechanical, structural, and industrial assemblies. Built from alloy steel with an Armor Coat finish for corrosion resistance, this screw features a 1/2-13 UNC thread size and measures 4 inches in length under the head. It is partially threaded and driven with a 3/8-inch hex key. The Armor Coat coating provides a durable protective layer suited for environments where standard zinc plating falls short. This fastener meets ASME B18.3 dimensional standards, making it a reliable choice for precision-fit applications where dimensional consistency is required.

This cap screw is used in a wide range of trade and industrial settings including HVAC equipment mounting, mechanical equipment frames, pumping systems, and structural steel assemblies. The 1/2-13 UNC coarse thread pattern is well suited for general fastening into steel, aluminum, and cast materials where quick engagement and strong clamping force are needed. Licensed mechanics, millwrights, and field technicians working on commercial and industrial equipment will find this fastener appropriate for standard bolt-pattern assemblies requiring a recessed-drive cap screw.

Key Features

• Alloy steel construction for high tensile strength and durability
• Armor Coat finish provides enhanced corrosion resistance over standard coatings
• 1/2-13 UNC coarse thread for strong thread engagement and fast installation
• 4-inch length under head suits deep-reach fastening applications
• Partially threaded shank for precise clamping in bolted joints
• Meets ASME B18.3 dimensional standard for consistent fit and interchangeability
• 3/8-inch hex drive compatible with standard hex keys and socket tooling

Compatibility

Designed as an OEM-style replacement or direct-fit fastener for applications requiring a 1/2-13 UNC hex socket cap screw with a 4-inch length under head, conforming to ASME B18.3.

Installation Notes

Installation should be performed by a qualified mechanic or technician familiar with fastener standards and torque requirements for the specific assembly. De-energize and lock out all powered equipment before accessing fastener locations on machinery. Use the correct 3/8-inch hex key or socket to avoid rounding the drive recess. Follow the equipment manufacturer's torque specifications for the assembly being serviced, as torque values vary by application and joint design.