Fastronix Premium High Current 3/8" Thru Panel Battery Terminal Connectors USA Made

Can I get 2 red terminals?

Any way to use these with Lithium Lifepo4 cells with M6 size terminals?

I am looking for 5/16 or 3/8" thru panel terminals with a voltage rating of 600 vdc and a current rating of 100 amps. do you have such a product?

Can i attach my factory (2017 coyote 5.0) neg/pos terminals directly to these to pass thru firewall to my trunk mounted battery?