Hillman Zinc-Plated Carbon Steel Coupling Nuts 5/8-11, USS Coarse Thread | Joins two rods end to end, extends a rod run, long six-sided body, plumbing, hanging, HVAC, takes a wrench, rust-resistant

JOINS AND EXTENDS THREADED ROD. This coupling nut connects two lengths of threaded rod or two bolts end to end, extending a run into one longer piece and giving a strong, continuous connection for hanging, mounting, and tie-rod work.

LONG BODY, THREADED ALL THROUGH. Sized for a 5/8-11 coarse thread, the extended six-sided body is internally threaded end to end, so a rod or bolt turns in from each side while a wrench grips the flats to draw both into one joint.

ZINC-PLATED STEEL. Made from steel with a protective zinc plating, the coupling nut resists rust and corrosion for dependable indoor and light outdoor use, holding a strong, aligned joint between two threaded ends over the long term.

HANGING, PLUMBING, AND HVAC USE. Ideal for extending all-thread rod, hanging light fixtures and HVAC equipment, plumbing supports, and tie-rod assemblies where two threaded ends must be joined into one longer, load-bearing run.

TRUSTED HILLMAN QUALITY. Hillman supplies dependable fasteners and hardware that homeowners and pros rely on for everyday projects. Keep these nuts on hand for assembly, mounting, and repair jobs around the home and shop.