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:
Gusset, 6" x 3"
Product Details
Brand: Welder Series
Thickness: 3/16"
The relief along the straight sides minimizes weld distortion and the corner angle cut gives extra clearance.
Used in our rear spring perch kit. 3/16″ mild steel, laser cut.