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The VALUE COLLECTION 250226 is a stainless steel standard coupling nut designed to join two externally threaded fasteners end-to-end along a common axis. Machined to 3/8-16 UNC thread specifications with a right-hand thread direction, this nut measures 1-1/8 inches overall length and 1/2 inch across the flats. Constructed from 18-8 stainless steel, it offers solid corrosion resistance in wet, humid, or mildly chemical environments. Licensed tradespeople and maintenance technicians reach for coupling nuts when extending threaded rod, connecting anchor bolts, or assembling mechanical linkages where a standard hex nut will not provide sufficient thread engagement.
This coupling nut suits a wide range of commercial and industrial fastening applications including plumbing support hangers, HVAC threaded rod assemblies, electrical conduit supports, and general mechanical installations. The UNC thread form is the standard for most inch-series fastener applications in North America, making this nut broadly compatible across trade disciplines. Its compact 1-1/8 inch length fits into tight assemblies where longer coupling nuts would be impractical.
Designed for use with 3/8-16 UNC externally threaded fasteners including threaded rod and bolts in standard inch-series applications across plumbing, HVAC, electrical, and general mechanical installations.
Install using a 1/2 inch open-end or box wrench; avoid pipe wrenches or adjustable pliers that may deform the hex flats. Hand-tighten first to confirm thread engagement before applying tool torque. In structural or load-bearing applications, consult applicable building codes and engineering specifications for required fastener ratings. Stainless steel fasteners are susceptible to galling — apply an anti-seize compound to the threads before assembly to prevent seizing during installation or future removal.
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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