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The VALUE COLLECTION R57001170 is a fully threaded hex head cap screw in a 1/2-13 thread size by 4-1/2 inches under head length. Manufactured from 18-8 stainless steel with no finish coating, this fastener delivers solid corrosion resistance in wet, chemical-exposed, or outdoor environments where carbon steel hardware would degrade. The UNC (Unified National Coarse) thread form is the standard for general mechanical assemblies across HVAC, plumbing, electrical, and pool equipment installations. At 0.3 pounds per piece, it is a practical stocking fastener for technicians who need reliable, code-appropriate hardware on the job.
This screw is suited for trade applications requiring a corrosion-resistant, general-purpose fastener in light to medium structural assemblies. Common installation scenarios include mounting brackets, equipment frames, access panels, and mechanical enclosures in residential and light commercial settings. The fully threaded shank provides maximum thread engagement across the full grip length, which is particularly useful when securing thin materials or when threading into a nut rather than a tapped hole.
Designed as a general-purpose inch-measurement hex head cap screw for use in standard 1/2-13 UNC tapped holes or with 1/2-13 hex nuts across a wide range of mechanical and structural assemblies.
Installation is appropriate for qualified technicians and experienced trades professionals working with inch-measurement fastener systems. Always ensure the mating thread or nut is also rated 1/2-13 UNC before assembly. De-energize and isolate any equipment before accessing fastener points on live electrical or mechanical systems. Use a calibrated torque wrench when torque specifications are provided by the equipment manufacturer, and apply an anti-seize compound if stainless fasteners will be mated with stainless hardware to prevent galling.
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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