Nord-Lock M3.5(#6) Large OD Washer 316L Stainless Steel

Engineered for critical bolted joints, Nord-Lock Large O.D. Washer Metric Stainless Steel holds bolt preload against vibration and dynamic loading through a tensioning cam action rather than friction or thread deformation. The wedge-locking design means tighter, not looser, joints under load. Used across rail and mining equipment, wind energy installations, offshore and marine fastening, heavy plant and machinery, and structural engineering connections. Part of the Nord-Lock range of vibration-resistant fasteners trusted by engineers in safety-critical applications. Designed to deliver consistent locking performance through demanding service conditions