Value Collection R57001173 Hex Head Cap Screw 1/2-20 X 2 in

Product Description

The VALUE COLLECTION R57001173 is a fully threaded hex head cap screw designed for reliable mechanical fastening in a wide range of trade and industrial applications. Sized at 1/2-20 UNF x 2 inches under head, it is manufactured from 18-8 stainless steel with a bright, uncoated finish that provides solid corrosion resistance without surface treatment. The 1/2-20 thread designation indicates a Unified National Fine thread, which delivers greater thread engagement per inch than coarse thread equivalents, making it well-suited for applications that require precise torque control or resistance to vibration loosening. Licensed tradespeople, maintenance mechanics, and field service technicians across HVAC, plumbing, and general mechanical trades regularly use fasteners of this type in equipment assembly, panel mounting, and structural connections.

This cap screw is appropriate for use in both residential and light commercial service environments where stainless steel fasteners are specified to resist moisture, mild chemicals, or outdoor exposure. Fully threaded construction runs the thread from tip to just under the head, maximizing engagement length when fastening through thinner stock or when used with a nut and washer assembly. It is a standard inch-series fastener compatible with 1/2-20 UNF tapped holes and 1/2-inch hardware throughout HVAC equipment frames, plumbing fixture mounting, electrical panel brackets, and similar assemblies.

Key Features

• 18-8 stainless steel construction for corrosion resistance in wet or outdoor service environments
• 1/2-20 UNF thread for fine-pitch engagement and vibration-resistant clamping
• Fully threaded shank provides maximum thread engagement across the full 2-inch length under head
• Bright, uncoated finish maintains dimensional accuracy and is suitable for direct use or further finishing
• Standard hex drive works with common wrenches and sockets found in any trade tool kit

Compatibility

Designed for use in any application requiring a 1/2-20 UNF fully threaded hex head cap screw in 18-8 stainless steel. Fits standard 1/2-20 tapped holes and is compatible with corresponding UNF nuts, washers, and threaded inserts in inch-series hardware assemblies.

Installation Notes

Install using a properly sized combination wrench or socket to avoid fastener rounding. Always verify that the mating tapped hole or nut matches the 1/2-20 UNF thread specification before installation, as UNF and UNC threads are not interchangeable. De-energize or shut off any equipment before accessing fastened components in live mechanical or electrical assemblies. Apply anti-seize compound if fastening into dissimilar metals to prevent galvanic corrosion over time.