1/2" Propeller Bolt Set for 4" Extension
Used to Mount Wood Propellers
These bolts are not for Sensenich Propellers. Sensenich Propellers are supplied w/bolts.
These bolts will NOT work for all wood props. Different lengths may be needed dependent on hub thickness.
For a wider selection, contact Saber Manufacturing
Includes washers and self-locking nuts. Length based on typical prop thickness of 4 3/8"-4 1/2".
There are two styles of prop extensions and each style requires a different type of prop bolt.
The 4" spool extension uses a 3/8" bolt with an (I)O-320 or a 1/2" bolt with an (I)O-360 engine.
The 2 1/4" cylindrical extension uses a bolt through the crush plate, prop, extension and into the engine crank flange. Not available in 3/8". If your crank requires 3/8", the crankshaft bushings must be replaced with 7/16" bushings. The (I)O-360 uses 1/2".
Priced as a set of six.