Making a skip bolt some call it a shoulder bolt

[Saltfever]

Hi Frank: Thanks for your fast reply and my apologies for my slow response. Its been a rough past few days!

Sorry for the persistent questions. I'm still trying to find the nut with a shoulder and how it locks in place and still give freedom of rotation.

It appears to have more flexibility in design compared to a shoulder bolt. Is the sleeve free to turn or is it locked in place?