Mirror Adapter 2 pcs - 10mm Female 8mm Male - Converts M10 mirror to M8
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 2)
Thread Adapter Screw Adapter Aluminum 1/4 Female/ 1/4 male to M4- M5 M6- M8- M10 | eBay