Extreme vibration and shock can cause bolted joints to lose preload, leading to component damage and reduced operational reliability. Nord-Lock® wedge-locking washers secure the joint and maintain clamp load under dynamic conditions.

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Conventional tightening often results in uneven preload, increasing the risk of loosening and fatigue. Boltight® hydraulic tensioners deliver controlled and consistent preload for reliable joint performance.

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Restricted access makes it difficult to use traditional tools, leading to uneven tightening and longer maintenance times. Superbolt® tensioners enable accurate preload using standard hand tools, improving safety and efficiency.

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Loosening joints and inaccurate preload increase inspection frequency and downtime. Using Nord-Lock Group technologies such as wedge-locking washers and tensioners ensures reliable preload and minimizes loosening, reducing maintenance needs and improving uptime.

Extreme dynamic loads can turn small preload variations into fatigue damage or component failure. Boltight® and Superbolt® tensioners ensure precise preload, supporting safe and reliable operation.

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Defense applications require proven performance under extreme conditions. Nord-Lock Group solutions are tested according to key military shock and vibration standards, including MIL‑STD‑901D and NASM 1312‑7, as well as UK MOD Def Stan 00‑35. NSN and NCAGE codes support secure, compliant sourcing for artillery and weapon systems.