A washer is a circular shaped object with a hole in the  center that is used with bolts, nuts and screws to provide a smooth bearing  surface between a bolt or screw’s head and the surface underneath. They also  distribute the fastener load over a wider surface area. The washer strengthens  the holding power of the bolt by evenly distributing the pressure from the bolt  head. 
                 
                There are many  different types of washers for different applications. For example, a flat  washer has a perfectly flat surface, while other washers have raised or rounded  surfaces. In general, you should always use a washer any time that you install  a bolt. 
                 
                Washers are used in everything from automotive to  construction. Anyplace you find a bolt, there is likely to be a matching  washer. A small but vital part, washers play a role in our everyday life  without ever really being seen. Washers are the unsung hero of the fastener  world, doing their duty while never receiving any notice or recognition. You  would be hard pressed to find any piece of equipment in the modern world that  didn’t use washers. 
                 
                Titanium washers have some amazing benefits. First, 6Al-4V  titanium washers have a yield strength that is three and a half greater than  stainless steel washers. This means that for a given washer thickness, more of  the load will be evenly distributed compared to a common stainless steel  washer. Second, titanium is really springy, which means when the bolt is  tightened, the washer keeps a constant load on the bolt through shock loads and  loads that continually pull and release. Finally, titanium washers are  corrosion free in the natural environment meaning the washer won't rust out or  crevice corrode causing the bolt to come loose. 
                
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