SKL rail insulators are also called guide plates, used in SKL fastening systems, combined with SKL tension clips, screw spikes, plastic dowels, flat washers and rail pads. Angle guide plate is used under tension clamp / SKL / to keep the rail in lateral position and the lateral forces are passed on to the concrete body by the means of Angle Guide plate. http://railsteels.com/rail_nylon_insulator_24.html
