Everbilt 5/16 in.-18 tpi Zinc Rod Coupling Nuts

Crown Bolt's rod coupling nuts are internally threaded nuts in extended lengths. Used with threaded rod, the coupling nut joins 2 piece of threaded rod together from opposing ends for hanging various items either vertically or horizontally. Generally hand tightened. Available in various diameters and lengths. Zinc plating offers some corrosion protection.