One of the largest marine engine company  is using GEMLOCK series slotted locking nuts and locking washer. The diesel  marine engines are always work in the vibration environments.

The connecting fasteners are creatial to the security of equipment .

The GEMLOCK series locking nuts, can help the customer improve the quality of their equipments and  reducing maintenance costs of the equipments. 

The GEMLOCK series locking nuts was designed with precision manufactured locking slots which provide superior resistance to vibration ,shock ,impact ,piece off and etc .

We provide customer with special material locking nuts which can work above 400C temperature and the nuts are  good solutions for exhaust pipe bolts connection.