Heavy-Duty Flat Washers adopt extra-thick high-strength steel plate, specially matched with heavy-load bolt assemblies for large axle load freight, mine and turnout railway lines.
It provides ultra-large uniform pressure-bearing surface, disperses extreme vertical & lateral impact load of heavy wagons, avoids crushing, cracking and deformation of concrete sleepers, cast iron bases and turnout components, greatly cutting component replacement & bolt retightening maintenance downtime for heavy haul railway lines.