Salco Products (EB16XHAS6C) 1 x 6-Inch Stainless Steel Eyebolt Assembly with Seal Hole and Safety Collar, Heavy Hex Nut features a 316 stainless steel eyebolt that is 1-inch in diameter and 6-inches in length with a 13/32-inch seal hole. The eyebolt has 1-8 UNC -2A rolled threads with the length of 4-inches. The inner diameter of the eye is 15/16-inches, with the outer diameter being 2-inches. Includes a 1-inch, 416 stainless steel, heavy hex nut. A 1-inch, 316 stainless steel, flat washer with a 2-1/2-inch outer diameter, and a 1-inch, 304 stainless steel, eyebolt safety collar. There is a bead of weld at the end of the threads to prevent the heavy hex nut from coming off.