Amazon.com: 1PZ MXM-001 Mirror Mount Adapter - M8 female to M10 male or 8mm to 10mm Chrome Replacement for Honda Custom Cafe Chopper Bobber Tracker Vintage Classic Kawasaki Yamaha Suzuki (Pack of
Amazon.co.jp: Fittings - 1pc M8 M10 M12 M14 M18 M18 M20 Metric Female to Male Threaded Brass Pipe Fitting Adapter Connector for Air Water Home, Factory and More (Size F M14x1.5-M M16x1.5) :