NATIONAL MFG/SPECTRUM BRANDS HHI 1/2-13 THRD Rod Coupler N182-709

4003BC, 1/2"-13", Zinc, Threaded Rod Coupler, Designed To Connect 2 Pieces Of Threaded Rod, Larger Couplers Come With Witness Holes To Confirm Rods Are Threaded Together Completely, UNC Coarse Thread Sizes.4003BC, UNC Coarse Thread Sizes."BOLTMASTER/STEELWORKS" THREAD ROD COUPLING NUT Coarse thread. Fastens threaded rod togeather. Can be cut. Should Not Be Welded. Low carbon steel. Zinc plated. Bulk. 1/2-13-References.