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The ARMOR COAT UST235889 is a hex socket cap screw designed for precision fastening in mechanical and structural assemblies. It features a 6-32 UNC thread size with a 1-3/4 inch length under the head and is partially threaded for secure clamping in through-hole and blind-hole applications. The screw is machined from alloy steel and finished with an Armor Coat corrosion-resistant coating. It is driven with a 7/64 inch hex key and conforms to ASME B18.3 standards. This fastener is well suited for HVAC equipment panels, electrical enclosures, pump housings, and other trade equipment where a low-profile, high-strength socket cap is required.
This screw is used across a wide range of light industrial and mechanical service applications. Common install scenarios include securing access panels on commercial HVAC units, mounting components inside electrical enclosures, and fastening machine guards or brackets on pumping and refrigeration equipment. The partial threading provides positive clamping force, making it appropriate for assemblies where the fastener passes through a clearance hole before threading into a tapped hole or nut.
Designed as a standard ASME B18.3 hex socket cap screw for any application requiring a 6-32 UNC partially threaded fastener with a 7/64 inch hex drive.
Installation does not require specialized trade licensing but should be performed by qualified mechanical or service technicians familiar with fastener torque practices. Use a properly sized 7/64 inch hex key or driver to avoid rounding the socket. Ensure the mating tapped hole or nut is clean and free of debris before threading. Do not over-drive the fastener, as alloy steel socket screws can fail if torqued beyond the design limits of the mating material.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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