Hex Nuts are high-strength standard hexagonal fastening nuts matched with full series of railway track bolts for high-speed, heavy haul, metro and turnout fastener systems.
Precision rolling thread provides stable lasting pre-tightening clamping force, bears vertical & lateral alternating vibration load from long-term train operation, avoids thread slip, nut spinning loose and fastener force failure, greatly cuts frequent bolt retightening & nut replacement maintenance shutdown loss for all types of railway lines.