In 1982, Nord-Lock Group developed the original Nord-Lock wedge-locking technology that safely secures bolted joints. Since then, our range of innovative bolting technologies and unparalleled expertise has grown to be the most comprehensive on the market, incorporating Superbolt mechanical tensioners, Boltight hydraulic tensioners, and Expander System pivot pins.
Our products maintain preload with tension instead of friction, and will prevent any fastened/bolted joints from unintentional loosening. No special tools are required for installation or removal. DNV Approved.