we supply all kinds of baselate/tie plate, single shouder/double shoulder, 5 1/2 6"base Material: ... T bolts, square head bolt, hex boltwith size above M16, suface plain, zinc, black, hdg.7Rail anchors, shoulders: 50kg, 70lb, 85lb ... , 90/91lb8EVA Rubber pad, HDPE Insulator, PA66 insulator, guide plate, plastic dowel railway tie ...