M6-SNHRSH… Brushed Nickel Plated Cheval Swivel Mirror Mount Screw Bolt Fastener Set, for wishbone mirrors and other swivel mirrors. Set is enough for one mirror. Bow is 1-1/4 inches wide and projects 1-1/4 inches. Bolt is 3-1/4 inches long and is a M8-1.25 metric bolt. Overall bolt is 4-1/2 inches long. Sold in pairs complete with 2 insert nuts, 2 washers and 2 bolts. Insert nuts have an outside thread of 1/2 x 13 inches. Mirror Bolt Fastener.