Stainless Steel Coupling Nuts Assortment (1/4" thru 5/8")Hillman Item #45131
An assortment of stainless steel coupling nut variants from The Hillman Group. Coupling nuts are long nuts used to connect pieces of threaded rod or other male-threaded fasteners. Think of them as longer hex nuts. Variants included in this assortment range from 1/4"-20 to 5/8"-11 in coarse thread size. Full assortment contains six (6) refills comprised of Hillman item numbers #45132 - #45137.