Item Package Quantity:10 VistaView CableTec Stainless Steel Washer Nuts are made to be threaded onto a standard 1/4"-20RH threaded terminal end fitting for a cable railing. The thread lock inside of the nut allows the threads to grip and hold in place, eliminating any slipping and loosening of your cable run. The Washer Nuts are installed very quickly and easily. First, place threaded terminal end through the end post. On the outside of the post, thread on the washer nut. Next, tighten the nut so that it pulls the threaded terminal through the post, hence tensioning up the cable run. When tightening, make sure that the terminal is not spinning the cable on the inside of the post (might require some vise grips on the inside of the post to prevent this). After proper tension is put on the cable, cut or grind off the excess threads outside of the washer nut. Lastly, finish off the end of your cable railing run by snapping on a decorative end cap, available in black, gray, white, brown or brushed stainless steel (all sold separately in the VistaView CableTec Amazon Storefront). WASHER NUT SPECIFICS: Outside Flange Diameter = 5/8" Height off Post (clearance) =1/4" Thread Diameter and Pitch = 1/4"-20 Have a hassle-free cable railing installation by using VistaView branded materials, tools and wealth of online resources and customer support (phone and email, before and after the sale). VistaView Cabletec has a strong reputation for a premium grade of stainless steel material, from cable to fittings (sold separately in the VistaView CableTec Amazon Storefront). Avoid using cheap, lesser grades of hardware from other sellers. Buy VistaView CableTec with confidence so you do not have to worry. 100% satisfaction is guaranteed with VistaView!