Nord-Lock Ltd - Your trusted global partner in bolt optimization

Joining parts together is one of the most critical steps when delivering a product or a system. The Nord-Lock Group is focused on solving the toughest bolting challenges.

We offer a unique combination of bolting expertise and a wide product range, including wedge-locking technology and Superbolt tensioners, all designed and developed in-house.

Nord-Lock holds decades of documented success in every major industry including oil & gas, energy, transportation and mining. Our Production System includes rigorous internal testing and full traceability. Our products hold several certificates from independent institutes including AbP, ABS, DIBt, DNV and TÜV.

The tools available through Nord-Lock Performance Services add value throughout a project and ensure that your bolting application pays back multiple times. We can also assist you in the design phase with joint simulation and testing. Additionally, we help you ensure successful operations over time with our on-site support and remote product training.

Our mission is to safeguard human lives and customer investments by securing the world’s most demanding applications. The Nord-Lock Group looks forward to being your partner in bolt optimization.
 

The Nord-Lock bolt securing system uses geometry to safely lock bolted joints in the most critical applications. Over the years, Nord-Lock washers have been rigorously tested and approved by independent institutes as well as certification authorities. Each batch is assigned a control number which ensures full traceability down to first assembly. Nord-Lock products help you increase your profitability by considering the complete life cycle cost for bolt securing.

The Nord-Lock Principle

Nord-Lock washers secure bolted joints with tension instead of friction. The system is comprised of a pair of washers that has cams on one side and radial teeth on the opposite side. Since the cam angle ”α” is greater than the thread pitch ”β” a wedge effect is created by the cams, preventing the bolt from rotating loose.

The Nord-Lock bolt securing system uses geometry to safely lock bolted joints in the most critical applications. Over the years, Nord-Lock washers have been rigorously tested and approved by independent institutes as well as certification authorities. Each batch is assigned a control number which ensures full traceability down to first assembly. Nord-Lock products help you increase your profitability by considering the complete life cycle cost for bolt securing.

This unique wedge-locking system offers:
• Maximum safety
• Resists loosening caused by vibration and dynamic loads
• Ease of assembly and disassembly
• Locking function is not affected by lubrication
• Positive locking at low and high preload levels
• Controllable preload
• Same temperature characteristics as standard bolt/nut
• Reusable

The Nord-Lock wheel nut safely secures wheels on on-road and off-road heavy vehicles by maintaining high clamping force even under extreme operating conditions.

When assembled correctly, the Nord-Lock wheel nut cannot loosen by itself. It represents a simple and cost effective way to make wheels safe and secure more productive and efficient operations. The Nord-Lock wheel nut is designed for flat-faced steel rims.

The Nord-Lock combi bolt is a bolt with an integrated pair of Nord-Lock washers. With the Nord-Lock combi bolt, you will be able to increase the efficiency, accuracy and safety of your assembly, while at the same time keeping inventory and part count at a minimum.

Based on our proven wedge-locking technology, the Nord-Lock combi bolt secures bolted joints and maintains a high clamp force even under severe operating conditions.