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The VALUE COLLECTION R56001360 is a heavy hex nut in 5/8-11 UNC threading, manufactured from Grade 316 stainless steel with a bright, uncoated finish. This fastener is used to secure bolted assemblies where corrosion resistance is a priority. The right-hand thread pattern and heavy hex profile provide increased bearing surface and wrench engagement compared to standard hex nuts. At 1.0625 inches across the flats and 39/64 inches in height, this nut is dimensioned for use with 5/8-inch fastener hardware in demanding environments. Licensed tradespeople and maintenance technicians working in corrosive or marine-adjacent applications rely on 316 stainless for its superior chloride resistance over 304-grade material.
This heavy hex nut is suited for use in plumbing, HVAC mechanical connections, pool and water treatment equipment, and general industrial assemblies where moisture, chemicals, or salt exposure are present. The Grade 316 material makes it appropriate for outdoor installations, coastal environments, and chemical processing applications. It is compatible with 5/8-11 UNC threaded fasteners and is commonly used in flanged connections, structural attachments, and equipment mounting in both residential and light commercial settings.
Designed as a standard heavy hex nut for use with 5/8-11 UNC threaded fasteners. Fits applications requiring a heavy hex profile and Grade 316 stainless steel corrosion resistance.
Installation is typically performed by plumbers, HVAC mechanics, electricians, or maintenance technicians depending on the assembly. Power down or depressurize the system before disassembling any bolted connections. Use a correctly sized 1-1/16 inch wrench or socket to avoid rounding the hex flats. Do not mix stainless steel fasteners with dissimilar metals in submerged or highly conductive environments without accounting for galvanic corrosion potential.
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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