Salco Products (EB786X2HAS6SCCN) 7/8 x 6-Inch Stainless Steel Eyebolt Assembly with Safety Catch and Seal Hole, Heavy Hex Nut features a 316 stainless steel eyebolt that is 7/8-inch in diameter and 6-inches in length with a 13/32-inch seal hole. The eyebolt has 7/8 -9 UNC -2A rolled threads with the length of 4-inches. The inner diameter of the eye is 13/16-inches, with the outer diameter being 1-3/4-inches. Includes a 7/8-inch, 416 stainless steel, heavy hex nut with 1-5/8-inches across the flat of the head. A 7/8-inch, 18-8 stainless steel, flat washer that's 1/4-inch thick with a 2-inch outer diameter, and a 7/8-inch x 2-3/4-inch, 316 stainless steel eyebolt safety catch. There is a 1/4-inch x 13/16-inch, 316 stainless steel, huck rivet at the end of the threads to prevent the heavy hex nut from coming off.