Solid brass cup washers are typically used under raised countersunk, or standard flat countersunk screw heads, for applications which require the ready removability and reinstallation of the screws, for example removing a boat window to replace a...
Burrs are solid copper washers used in lieu of roves in boatbuilding to make a peened rivet joint. Insert the correct gauge copper nail and push a burr over the tip, cut off excess nail and set using the ball side of a ball pein hammer. While...