The special washer prevents direct contact between the hinge and the temple roll.
Washers made of steel for titanium hinges
Diameter: 2.80 mm
Quantity 100 pieces
Thread size: available in both 1.20mm and 1.4mm
(1) Fit the washers on either side of the temple roll, (2) attach the temple to the hinge and then (3) fasten the screw to complete assembly. The temples will then move freely with less friction. See diagram below for numbered steps.