Twin Lock washers withstand heavy vibrations

1 min read

Böllhoff’s Twin-Lock fastener locking system uses the preload of the threaded connection to ensure that thread systems do not come undone. This offers maximum reliability compared to conventional, friction-actuated anti-rotation locks.

The Twin-Lock fastener locking system consists of two identical washers, which feature radial cogs on one side and splined cogs on the other side. They provide secure fastening solution, even with strong vibrations and dynamic loads.

When the nut/screw is tightened the radial outer cogs of the Twin-Lock lock washer presses positively into the contact surface. The tilt angle of the splined cogs is greater than the pitch ß of the screw thread. This means that if the threaded connection loosens, the preload force increases. In practice, the combination of the washer pairs results in reliable anti-rotation locking, even in the case of strong vibrations and dynamic loads.

The Böllhoff Group added Twin-Lock wedge-locking washers to its portfolio of screw-locking elements and now also has the exclusive distribution rights for Twin-Lock in many European countries. Twin-Lock is a high quality screw-locking solution and an alternative to other well-known wedge-locking products. The entire range is available from Böllhoff’s warehouses.

Böllhoff application engineers provide expert advice on the most technically appropriate and economic solutions in meetings with clients, technical seminars and consumer fairs, to achieve a sufficient secure and reliable bolted connection.

As an expert in screw fastening and secure joining, Böllhoff, offers a wide and varied range of mechanical and chemical fasteners to provide the best support and advice for its clients regarding this increasingly complex topic.