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Metric DIN 137 Curved Spring Washer Type"A" & Type "B" Stainless Steel

DIN 137 Type A and B Spring Lock Washers are specialty spring lock washers – Unlike standard split helical spring lock washers, the DIN 137 lock washers are uninterrupted formed disks in either a curved (Type "A") or waved (Type "B") configuration that are non-directional allowing the screw and or nut to be tightened in a clockwise or counterclockwise manner. When compressed by tightening the nut, the DIN 137 lock washers exert a spring force between the tightened bolt and the substrate creating frictional resistance to rotation. Available in high grade 301 (A1) stainless steel and marine grade A4 stainless steel.

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