Stainless Steel eyebolts, galvanized and brass eye bolts available from Jamestown Distributors. Some of the bolts have shoulders, some come with nuts. The lag screw eyes do not need to be pre-drilled, necessarily, but the bolts do. In addition to eye bolts, there are also eye nuts, in galvanized steel, that attach to a threaded rod or bolt. The shoulder nut ring bolt is popularly used on marine / boat docks, as a tie down loop.