Vol.4 What are washers used for?
2016-12-21u2002·u2002Flat washers prevent sinking of bearing surfaces. Flat washers come in various sizes for one screw diameter, from tiny to extra-large. The main role of flat washers is to increase the size of a screw's bearing surface area, and reduce the surface pressure applied on the fastened object. Looseness can result when the bearing surface sinks ...Get Price