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
Explore our washers today
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.