18.43 Top Rudder Gudgeon for 1-1/4" Rudders. 2-hole mounting. Inside Depth 2-3/8" (61mm), Inside Width 1-1/4" (32mm), Overall length 3-1/4" (82mm), Height 3/4" (19mm), Pin 5/16" (8mm), c/c fasteners (5mm hole), 1.5" (38mm)