Does a new motor come with transom bolts? If not does anyone know where can get one. Looking to attach a Yamaha 225 sho to a 2000 zx 202c . The bolts I believe are 6 inches and 1/2 .

Fastenal.

1/2" Stainless Steel fine thread bolts - brass locking nuts - hardened washers. Make sure the washers are hardened and use double nuts.

Check your local Fastenal dealer, or industrial bolt supplier.

Yamaha bolts are metric

Curious....What difference would that make bolting the motor to the boat?

Ace Hardware in Rockwall has a very good hardware section. Cannot say for sure they have a 6-1/2 SS but the odds are good. Some Tractor Supplies also have a good selection but not like the Ace.