Railinklock System is a secondary safety device that is installed on the nuts securing the bolts that hold joint bars and frog bars in place. The unit locks two joint bar or frog bar nuts together, creating resistance between the two nuts minimizing their ability to move/rotate. Railway track sections are connected either by Joint Bar Systems or they may be welded together. The Joint Bar System requires a series of bolts to hold the joint bars in place at a railway track joint and are designed to keep both vertical and horizontal movement to a minimum while maintaining clamping pressure at the joint. Frog bars are used at track junctions where the train can be diverted to another section of track. These joints must withstand substantial forces as the train is diverted to the alternate track. Misalignment of the rails can lead to both rail and train damage and the potential for a derailment. Each time a train passes over a joint that has been connected by a joint or frog bar system, significant vibration, vertical and some horizontal movement of the track is generated by the on-and-off weight of the train cars. Loose joint or frog bars allow significant movement of the railway tracks when railcars pass over, resulting in various levels of damage to the rails themselves or potentially causing the tracks to separate and trigger a train derailment. Joint and Frog Bar Systems require a continuous schedule of preventative maintenance to ensure the railway tracks function as designed. Frog bars experience additional stresses and pressure when compared to joint bars because the train is being forced sideways on the track to a new track; making preventative maintenance even more crucial.