I have installed many transformers just like the one shown. I used TA lugs just like that. My question is, when you perform PM and you can not shut down power, your going over for tight and the lug rotates......does it scare the heck out of you? It does me!
To answer myself kinda, I wish the Mfg's of Xfmr's supplied TA lugs with shoulders and Dividers between termination ponits.

Rob