Here is some helpful information on the application of Shakeproof Washers / Toothed Lock Washers.

Shakeproof Washers should be placed under your threaded fastener, for example the nut or the bolt or screw. In some applications or assemblies you may have a nut and a bolt, in this instance, place the shakeproof washer in between the nut and the head of the bolt. IMPORTANT! The washer should sit securely against both surfaces.

For removing a Shakeproof Washer, after you have removed the nut or bolt, simply use a flat screwdriver to pry the washer away. Lubricant may also come in handy if the washer has got stuck in the application.

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