$2.99
National Hardware 4003BC Series N182-675 Coupler, UNC Coarse Thread, 5/16-18 Thread, Steel, Zinc-Plated National Hardware 4003BC Coupler, Thread Type: UNC Coarse, Thread Size: 5/16-18, Hex Size: 0.43 in, 1000 lb Tensile Strength, Thread Length: 1 in, Steel, Zinc-Plated, Dimensions: 1 in L Designed to connect two pieces of threaded rod Larger couplers come with witness holes to confirm rods are threaded together completely UNC coarse thread sizes
Line Drawing
