When we ran a full service chassis fab/turn-key hot rod shop a number of years ago, it was always useful to have threaded things around to weld into the frame for some kind of mount, etc.
Here’s a list of all our threaded things for your reference:
Bushing for 1" sway bar in 1-5/8" tube, Delrin
Product Details
Brand: Welder Series
MPN: 327004
Country/Region of Manufacture: Canada
Hole size: 1"
Priced individually.
This is the Delrin bushing used to hold our 1" sway bar inside the larger 1-5/8" outer tube.