2.25" (57.15mm)
70% of all units sold since 1979 are Mod II units
Shaft Lok is quick and easy to install
Shaft Lok uses stainless steel fasteners
Boats with some engine room space restrictions.
The maximum Mod II Easy Lok bore size is 2.25" or 57.15mm.
The width of the unit is 2.00" or 50.8mm.
The Mod II Easy Lok unit is Shaft Lok's most popular unit. Out of approximately 1400 units shipped since 1979 about 70% are Mod II units. This means the components are usually in stock.
A question frequently asked: "How is the unit secured to the propeller shaft?" There are four 3/8" 9.525mm diameter x 24 thread stainless steel cup pointed set screws in the stainless steel hub that are fastened to the shaft. The shaft needs to be dimpled for which a drill bit is provided. This Mod II unit is about twice the size of the Mod I Easy Lok unit and about half the size of the Mod III Easy Lok unit. Feathering propellers produce more speed when sailing and result in more drive train life.