The APC Folding Prop Hubs are designed for use with APC's folding prop blades. This 35mm hub is made for use on motors with 8mm threaded prop adapters. This prop hub can be used with 30mm or 1-1/8 to 1-1/4 inch spinners.
The APC folding props are designed to be used on Electric Motors only. Use on a glow or gas engine can result in failure and cause serious injury!