Value Collection R63084643 Hex Jam Nut 5/8-11 18-8 Ss

Product Description

The VALUE COLLECTION R63084643 is a 5/8-11 UNC hex jam nut machined from 18-8 stainless steel with an uncoated finish. Jam nuts are thin-profile hex nuts used to lock a standard nut in place or to secure a threaded rod, stud, or bolt where a full-height nut would interfere with assembly. At 3/8 inches in height and 15/16 inches across flats, this nut fits standard 5/8-11 UNC right-hand threaded fastener applications. The 18-8 stainless steel construction provides solid corrosion resistance in wet or outdoor environments. Mechanical contractors, plumbers, electricians, and HVAC technicians commonly use jam nuts in equipment mounting, pipe hanger assemblies, and panel fabrication work.

This jam nut suits a wide range of light commercial and residential trade applications where a low-profile locking fastener is required on 5/8-11 UNC threaded rod or hardware. Common uses include unistrut and pipe hanger installations, equipment vibration isolation mounts, fan and blower bracket assemblies, and general mechanical fastening. The uncoated 18-8 stainless finish makes it appropriate for damp locations, outdoor installations, and chemical environments where carbon steel hardware would corrode. Right-hand thread direction is standard for the vast majority of threaded rod and bolt stock used in trade work.

Key Features

• Jam nut profile at 3/8 inches height for low-clearance locking applications
• 18-8 stainless steel construction resists corrosion in wet and outdoor environments
• 5/8-11 UNC right-hand thread matches standard threaded rod and bolt stock
• 15/16 inches across flats fits standard 15/16-inch or adjustable wrenches
• Uncoated finish eliminates coating adhesion concerns in high-vibration or chemical-exposure settings

Compatibility

Designed for use on 5/8-11 UNC right-hand threaded rod, bolts, and studs as an OEM-style or aftermarket jam nut in mechanical, HVAC, plumbing, and electrical trade fastening applications.

Installation Notes

Installation requires a 15/16-inch open-end or combination wrench. Thread the jam nut onto the fastener and torque it against the primary nut or mating surface to lock the assembly. Ensure mating threads are free of debris before installation. Stainless steel fasteners are susceptible to galling — apply an anti-seize compound to the threads if repeated disassembly is anticipated.