1. Call the other guy (if you had exchanged phone #) and tell him to send you the quote for the damage. Tell him you are willing to pay that back directly without insurance involved.
2. report the damage to your insurance company, send over the pictures if you have taken. Also inform your insurance company that you would like to pay the damage to the insurance company (if the other side claimed his insurance) in order to maintain your good record.
If just screw marks, I don't think it costs you a lot. Good luck!!
Keep safety distance!