200 Clock Pivot Bushing Square Hole Washers Repair Parts 100 Clock Pivot Bushings. This is a new set of 100 assorted brass pivot bushings. These can be used for various aspects of clock repair. These pivot bushings are various sizes 100 Square Hole Washers. This is a new assortment of 100 brass wall clock square hole washers. These square hole washers are various sizes and are used in many aspects of clock repair. We work hard to update our descriptions and pictures of our merchandise. As part of a process of ongoing innovation by our suppliers, newer versions of the item shown may be shipped before we are able to complete an update. As a result there may be a slight variation in color and design.