EXTRA DUTY HELICAL SPRING SPLIT LOCKWASHERS
With a further increase in O.D., thickness and bearing area, the Extra-Duty (Extra Heavy) helical spring spilt lock washer absorbs exceptionally high torques and retains tension under heavy loads. WCL also refers to these as Extra Heavy (EH).
We also have Mil-Spec Extra-Duty (Extra Heavy) Helical Spring Spilt Lockwashers.
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