We offer a superior bolt securing system that provides safe locking for bolted joints even when exposed to severe vibration and dynamic load. The unique aspect of Nord-Lock® is that it doesn't attempt to prevent relative motion, but instead only allows this motion to tighten rather than loosen the bolt. This is accomplished with a pair of washers whose inner surfaces act like cams with a greater ramp angle than the helix angle of the screw threads. On the opposite side are serrations that grip the bolt head and the mating surface. If the bolt attempts to move in the direction of loosening, a wedge is created and tension is actually increased.
Yangtze Railroad Materials has specialized in supplying quality fasteners and fastening solutions since 1989. Yangtze has successfully developed into an innovative and vertically integrated company that has proudly defined itself by meeting its customers’ needs. Our typical customer places... Read More
HEICO Fastening Systems specializes in providing superior engineered fastening products for effectively securing critical bolted joints in the most demanding applications. Our family of HEICO-LOCK wedge locking washers and HEICO-TEC tension nuts and bolts ensure the safety, accuracy and lifespan...
United Steel & Fasteners is a manufacturer and supplier of quality fasteners for the Railroads For the last forty two years we have been a manufacturer and supplier of quality fasteners for track and Bridges and an ISO certified