Goodridge Crush Washers Copper 3/8 X 10MM Copper 6 Pack 04-13 XL models use metric 10 mm x 1.25 and 12 mm x 1.50 banjo bolts, washers and fittings. All Big Twin except 08-13 Dressers and pre-04 XL models use standard 3/8in. and 7/16in. banjo bolts, washers and fittings. Fittings and washers listed as 3/8in./10 mm can be used in either application. 6-pk