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Metric DIN 128 Curved Spring Lock Washer Stainless Steel


DIN 128 Type A Spring Lock Washers are specialty spring lock washers that are split metal rings bent into a curved (Type A) configuration. Unlike standard split helical spring lock washers, the DIN 128 lock washers are non-directional, allowing the screw and or nut to be tightened in a clockwise or counter-clockwise manner. When compressed by tightening the nut, the DIN 128 lock washer 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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