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Custom D-washers
Boker’s application specific D-washers provide a flat bearing surface and are used under the head of a bolt or a nut to disperse loads as well as prevent the washer from turning in the application. D-washers are generally mounted with the flat edge of the washer facing a flat surface or recessed hole. Boker's D-washers are custom produced in short, medium, and long runs with 3D prototypes available.