4Pcs 6mm Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors

Pretty good product. Only complain is the little holes you attach whatever to it with, they are not threaded, and so tiny there finding nuts and bolts to attach something to it is a challenge. I just welded a 3/8 nut to the top of it and found that to work very good.

Was only given 4 out of 8 M4 fasteners, 3 of which were not in the bag. The bag was very difficult to open without cutting. Very small lip on the ID towards the base that would have to be removed to use them as a mid shaft through mount.

Made new extensions for long selector, volume and tone controls when plastic coupling broke. They work well

8mm shaft - perfect fit - thread tolerances are good.

These are excellent! Fit and finish is perfect. Using these on 28BYJ-48 stepper motors. Great deal for the price.

good

good quality

Me gusto los tiempos y el producto es de excelente calidad.

It is a perfect little coupler.

Perfect sized for my rc ship. They look and feel very solid. Arrived seriously fast too so, I don’t think they are shipped from China. Maybe made in China but shopped right from an amazon warehouse . When I need more, I will definitely order from this seller again.