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The VALUE COLLECTION 36656-B is a heavy hex nut threaded to a 1/2-13 UNC specification with a right-hand thread direction and a 2B class of fit. Made from steel and supplied uncoated, this nut features an across-flats width of 7/8 inches and a height of 31/64 inches. The heavy hex profile provides greater bearing surface and wall thickness compared to standard hex nuts, making it suited for high-load fastening applications where added clamping strength is required. Licensed tradespeople and industrial maintenance professionals install these nuts as part of structural and mechanical assemblies.
This heavy hex nut is used in structural steel connections, mechanical equipment mounting, and general industrial fastening where UNC threading is specified. The uncoated steel finish makes it appropriate for applications where a coating will be applied on-site or where coating is not required by the assembly specification. It is commonly used in fabrication shops, maintenance facilities, and construction applications demanding a heavy hex fastener profile.
Designed as an OEM-style replacement or standard service fastener compatible with 1/2-13 UNC threaded bolts and studs with a 2A thread class of fit in structural and mechanical assemblies.
Installation is performed by qualified tradespeople or mechanical technicians using standard 7/8-inch hex wrenches or sockets. Always ensure mating bolt or stud carries a 1/2-13 UNC 2A thread class for proper fit. Torque to values specified by the assembly engineer or applicable structural code. Inspect threads for damage or contamination before installation.
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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