TREP®functionsThe TREP® spring washer maintains a high level of tension in the screw while conserving considerable elastic energy stored in a small volume.
This washer guarantees that the assembly will not loosen in the event of crushing, material expansion, wear or vibration. It compensates for expansion gaps and its elasticity maintains optimal tension in the screws and bolted assembly.

Principal functions:
 Rail (. on-board power electronics notably for the TGV!) Electrical equipment Special machines subject to high vibrations (vibrating screens, crushers, etc.)