Quote:
Originally Posted by Stew Robertson
here is a quote from the machinist handbook
My question is why would you a loose fitting thread or a free fitting thread to fasten an axle in . yes you guys are talking the same threads but not machine cut threads where they are designed to hold a load for a to attach a wheel where they can be torqued to the right spec. 
PS I think you owe me lunch again |
Your book is referring to American National Pipe threads, we are talking British Standard. Proof is shown in the original parts book that it is BSP. If a male and female thread are cut to the correct tolerances, there is no reason for them to be "loose fitting", that was referring to pipe nuts, this is a pipe thread form used elsewhere. In my work experience I have also come across BSP used in other roles, not pipe.
You might have to go hungry, no lunch yet