1/2" Propeller Bolt Set for 4" Extension

$75.00
Part Number
PROP BOLT KIT 1/2"
Limited Stock Available

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.

  • (6) AN365-820A view
  • (6) AN8-63A view
  • (6) NAS1149F0863P view
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