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:
Suicide spring perch kit to mount a 1-3/4″ spring in front of a 2″ round tube crossmember. The main plate centers on the tube. The spring can be mounted under or on top of the perch plate. The 2 clamp bars have holes for 3/8″ bolts and eliminate the u-bolts. The clamp bars can be countersunk for flat head Allen bolts. (There is enough meat around the hole.) The bolts in the kit are good for a spring with 5 leaves. If you plan to use special bolts, just order the parts required. #212714
Spring not included. We can substitute #10102 gussets if you want to use this kit on a square tube crossmember.
