I'm looking for the 2 front leaf eye bolts with the Marsden nuts. The bolts is 5/8 x 18 x 4.20" long with either the H marking or D with three slashes markings on the head. The nut is 5/8 x 18 hex marsden nut (the nut has 6 slits on the top, kinda like a castle nut but not the same.)