... tie plates, clamps, fastenings, gauge plates, tie pads, fish plates and joint bars.4, Rail brace, ... , Nuts, flat washers and spring washers, plastic pads, nylon insulator, bushing etc.Stainless Steel Hex bolts ... plants and steel boiler steel. System metallurgical plants, railway bridges, airport hangar, port machinery, high-rise buildings ... building industry High Strength Bolt for railway,subway or bridge