McGard 74040 Marine Propeller Lock Set (M18 x 1.5 Thread Size) - Honda/Yamaha/Suzuki - Set of 1 Overall Lock Length - 1.025" M18 x 1.5 Thread Size 1 - 1/16" Hex Size Propeller Locks Set of 1 Lock, 1 Key, 1 Washer and 1 Cap