... .8, 10.9, 12.9 1, Elastic rail clips2, Dog spikes, square head screw spikes, ... switch & crossing bolts, high tensile strength bolts for rail bridges etc.3, Various type and sizes of ... fish plates and joint bars.4, Rail brace, welded shoulders and rail anchors.5, Standard fasteners.6, Nuts ... (TC bolt) Torshear type high strength bolts for steel structureMaterialAlloy steel ,carbon steel, stainless steel ...