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The VALUE COLLECTION V70170PS is a 5/8-11 UNC hex jam nut machined from Grade 316 stainless steel with a bright, uncoated finish. As a jam nut, it has a reduced height compared to a standard hex nut, making it suited for locking applications where two nuts are threaded against each other to prevent loosening. The right-hand thread conforms to Unified National Coarse (UNC) standards. Grade 316 stainless steel provides strong resistance to corrosion and pitting, including in chloride-rich and marine environments, making this fastener a reliable choice in demanding service conditions. Installers working on plumbing, HVAC, pool equipment, or marine-adjacent hardware regularly reach for 316 SS hardware for longevity in wet or chemical-exposure settings.
This jam nut is suited for use in residential and commercial applications where a low-profile locking fastener is required on 5/8-11 threaded rod, bolts, or stud assemblies. Typical install scenarios include mechanical equipment mounts, pipe support hardware, pump bases, and structural fastening assemblies exposed to moisture, salt, or mild chemical contact. The bright uncoated finish leaves the alloy properties fully exposed without any plating that could degrade or interact with process fluids.
Designed for use on any 5/8-11 UNC threaded fastener, rod, or stud assembly requiring a right-hand-thread jam nut in Grade 316 stainless steel.
This fastener is typically installed by millwrights, pipefitters, plumbers, or HVAC technicians during equipment assembly or maintenance. Always de-energize and isolate equipment before servicing fastener assemblies on mechanical or electrical systems. When using as a jam nut, thread it against a primary nut to the specified torque sequence for the assembly — refer to the equipment manufacturer's fastener torque guidance. Avoid mixing stainless steel fasteners with dissimilar metals in environments where galvanic corrosion is a concern.
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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