I don't use them because @blackhatboojum made fun of me once.
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I suggest sticking with the Cliff brand as they are quality and the nut and threads actually work together as opposed to the cheap innies. ...
A white washer on the inside works tooThey’re quite handy if you have the room and have another nut to set the depth.
Well at least I'll be in good company!
Same with me when i started with Musikding kits. Now i am into 1590B and top jacks and Lumbergs, so my stock of them don‘t go away.When I started building kits from byoc around 2015-2016 they were common to be the jack in the kit. I guess I was used to them but always thought they looked kinda corny. I bought a bunch on my first tayda order for like next to nothing and used them on everything for years. One day I got clowned for using them and never looked back. I appreciate the motivation that I received and upped my game.