Du-Bro's spinner prop nut is constructed of red anodized aluminum. Meets AMA safety specs. CNC machined from 6061 T6 aluminum. Works with standard electric starting cones. Designed to fit engines with a 8mm x 1 threaded crankshaft including the following listed below;
Enya- R120 4S and R120 4S GP
YS- All four stroke engine models