HOME and how to join › Forum › Open Area › General Scott topics › Nut sizes › Re: Re: Nut sizes
Just to confuse us, 5/8 x 20tpi and 5/8 x 26tpi are both designated cycle threads – but the Birmingham Scotts had 20tpi threads as Geoff says – as I made some new engine studs a few months ago for someone on my rotary chisel.
