Sorry to burst your bubble - but the terminals you bought are trash - and the screw lugs (what you call thimble) are also trash - and the F type crimp ones you bought, - you dont have its crimping die.
If you try to hammer the crimp on F terminals - it wont work, the crimp has to literally fold inwards in the center and crush all the copper wires inside to become a solid piece of metal. by picture they look very weak too, is it as thick and strong as the original lug (thimble) thats installed on your original starter wire?
I would suggest return all these - as they are a waste of money, and find real proper stuff.