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The VALUE COLLECTION 99799 is a 1/2-20 UNF hex nut machined from steel and finished in black oxide. It features a right-hand thread direction, 0.75 inches across flats, and stands 0.4375 inches high. The black oxide finish provides a mild degree of corrosion resistance and reduces light reflection on finished assemblies. This fastener is suited for general mechanical and industrial applications where a standard UNF fine-thread nut is required. It is installed by mechanical trades, maintenance technicians, and equipment assemblers working with fine-thread fastener systems.
This nut is used in a wide range of mechanical assembly and maintenance applications that call for a 1/2-20 UNF fine-thread fastener. Fine-thread UNF fasteners are common in automotive, light industrial, and mechanical equipment contexts where higher thread engagement strength and better resistance to loosening under vibration are needed compared to coarse-thread alternatives. Sold individually with a minimum order quantity of 50 pieces.
Designed as a standard 1/2-20 UNF replacement or assembly hex nut compatible with any 1/2-20 UNF fine-thread fastener application requiring a right-hand steel hex nut.
Installation requires a 3/4-inch open-end wrench, box wrench, or socket. Ensure mating bolt or stud thread specification matches 1/2-20 UNF before installation. Power down or de-energize any equipment before performing fastener service on mechanical assemblies. Do not over-torque; follow the equipment manufacturer torque specifications for the application.
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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