1. Titanium plain washer made out of Gr. 2, Gr.5 and other grades. 2.UNC, UNF, Metric and DIN are available. Titanium plain washer.1.Grade 1, 2, 5, 12 and other grades are available2.UNC, UNF, Metric and DIN are available.3.Custom products available.4.Applied to auto racing, bicycle, motorcycle, chemical, marine, medical and other industries. Titanium Plain Washer