This Is An X-Long Propeller Adapter Nut from Dave Brown Products.|
Plain black, CNC machined steel construction.
Use with 3-1/4" to 4" spinners.
This prop adapter kit tightens the backplate and propeller onto the
engine, then using a single bolt-on design, holds and centers
each spinner perfectly on its baseplate.
Will fit the following engines:
OS Max .25-.60, SuperTigre .25-.60, Fox .19-.50,
Enya .25-.53, K&B .19-.65, OPS .40-.60, Webra .28-.80
(1) Propeller Adapter Nut
(1) Propeller Washer
Spinner Cone & Bolt
Crankshaft Thread Size: 1/4-28
Nut Length: 1.625"
Although it will depend on the thickness of your prop and the
spinner size, as a general rule, always use the longest adapter