Motor bolt hole question

[3 Squids]

Ok so I've kinda combined everyone's advice. Last night I used acid brushes and brushed a liberal amount of 5200 in the transom holes then applied a good coat on the bolt shanks and inserted the bolts through the transom. I also put a bead around the outside of the bolt holes and wiped it around the bolt real good. Sure enough today then babies are stuck in there good. Now I plan on doing a good bead of LifeCaulk around the bolts when I set the motor. I feel this should suffice.