And there you have jstyle regardless of the method and the tool you choose to do the job with please do go ahead and do it. Screwing the prop onto the crankshaft should be avoided at all cost such as you described and the reason may seem counter intuitive but doing so will make the chances of loosing the nut/washer/prop and prop drive bushing on the ground or even in flight much greater due to back firing or even vibration in the plane of rotation.

If a spinner is used the problem is even worse.

John