Salco Products (TC0756PA1) 3/4-inch Stainless Steel Plug with Stainless Steel Swivel Link consists of a plug that has 3/4-inch NPT threads, and is made out of 316 stainless steel material. The width across the flats of the head is 1-inch. Length of the thread is .63-inches with the overall length of the plug being 1.07-inches. Comes with a 1/8-inch, 18-8 stainless steel, swivel link that is crimped around the plug.