18.13 Top transom pintle, 5/16" (8mm) Pintle, 2 hole mounting, 6mm diameter mounting holes. Width (across) 3" (76mm), Depth 7/8" (22mm), Height (mounting) 7/8" (22mm) overall height including pintle 2" (51mm). Mounting Holes c/c 2.18" (55.5mm)