The benefits awaiting you

Secures bolted joints in structural steelwork

Designed and approved for use with HV sets

Reliable locking even for joints with short clamp length

Locking function not affected by lubrication

High reusability potential

High corrosion resistance

Quick to install and remove using standard tools

Same temperature characteristics as standard bolt / nut

Defined and uniform friction condition, which results in less deviation of achieved preload

Prevents loosening caused by vibration and dynamic loads

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CERTIFIED FOR STEEL APPLICATIONS 

Nord-Lock SC-washers have been rigorously tested and approved by independent
institutes as well as certification authorities. They are safe to use with high-strength structural bolting assemblies for preloading and are confirmed for HV-assemblies by the European Technical Assessment ETA-20/0010 issued by the German Institute for Construction Technology (DIBt).
 
SC-washers, NLO, NLSS and 254 SMO® are safe to use in non-preloaded structural bolting assemblies according EN 15048 and confirmed by the ETA-19/0813 issued by the DIBt.