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The VALUE COLLECTION R80826816 is a partially threaded hex head cap screw designed for secure fastening in applications where full thread engagement is not required or where a smooth shank section improves alignment and shear resistance. Manufactured from 18-8 stainless steel, it provides solid corrosion resistance in wet, humid, or mildly chemical environments. The screw measures 5/8-18 in thread size with a 2.5-inch length under head and is left uncoated, preserving the natural stainless finish. It follows the Unified National Fine (UNF) thread standard, making it compatible with precision-toleranced assemblies. Tradespeople in plumbing, HVAC, electrical, and general mechanical service regularly use this fastener where reliable, corrosion-resistant clamping is needed.
This fastener is well suited for use in residential and light commercial mechanical systems, equipment panels, pipe supports, and structural brackets where stainless steel is specified to resist rust or galvanic issues. The UNF thread pitch provides finer thread engagement and greater pullout resistance compared to coarse-thread equivalents, making it a preferred choice in metal-to-metal fastening scenarios. It is sold individually and is appropriate for single-unit repair or replacement tasks as well as small-batch assembly work.
Designed as a standard 5/8-18 UNF hex head cap screw suitable for any application requiring an inch-system, fine-thread stainless steel fastener of this size and length.
Installation is performed with a standard hex wrench or socket driver sized for a 5/8-inch hex head cap screw. Ensure mating threads are clean and free of debris before installation. When fastening into stainless steel tapped holes, apply an appropriate anti-seize compound to prevent thread galling, which is common with 18-8 stainless fasteners. Torque to the assembly specification provided by the equipment manufacturer.
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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