DIN 128 Spring Lock Washers are specially spring lock washers known as split metal rings which are bent into curved or waved configuration. Unlike standard split helical spring lock washers, DIN 128 Lock Washers are non-directionally specific allowing the screw or nut to be tightened in a clockwise or counter clockwise manner. We manufacture stainless steel spring lock washers in an extensive range of sizes. They can be ordered from our inventory or produced and packaged according to your custom requirements.