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The VALUE COLLECTION R50000256 is a 1-1/8 inch - 12 UN steel hex nut intended for right-hand threaded fastening applications. Manufactured from steel with an uncoated finish, this nut measures 1-11/16 inches across the flats and stands 31/32 inches high. It follows the UN (Unified National) thread standard, making it compatible with standard inch-series threaded fasteners. Licensed electricians, plumbers, HVAC technicians, and general mechanical tradespeople use hex nuts like this one when assembling or repairing equipment, piping supports, structural mounts, and mechanical systems that require a secure, reliable threaded connection.
This hex nut is suited for a wide range of trade and industrial assembly tasks. Its 1-1/8 inch - 12 UN thread size falls in the fine-thread category for this diameter, which provides greater thread engagement and resistance to loosening under vibration compared to coarse-thread equivalents. Typical applications include bolted flange assemblies, equipment mounting hardware, conduit support structures, and mechanical equipment repairs found in residential and light commercial trade work. The uncoated steel construction is appropriate for interior or protected environments where corrosion resistance is not a primary requirement.
Designed as a standard UN thread hex nut for use with 1-1/8 inch - 12 UN right-hand threaded bolts and studs following the Unified National thread standard.
Installation is performed with a standard open-end, box-end, or socket wrench sized to fit 1-11/16 inches across the flats. Ensure the mating bolt or stud threads are clean and undamaged before installation. Torque to the fastener assembly specification appropriate for the bolt grade and application. Do not use this nut in environments with significant moisture or chemical exposure without applying an appropriate corrosion-resistant coating or selecting an alternative finish.
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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