Hanging a punching bag in the basement

I have hung a punching bag weighing about 100 pounds in my unfinished basement. I just want to make sure that the setup would not harm my basement in any way.

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  • The boards are 2*6 lumber
  • The screws I used to hang the boards are 3.5 inches long (8 per board)
  • This is the heavy bag hanger
  • This is the heavy duty spring

Answers that I am interested in:

Would this setup

  1. Cause any sort of damage to the basement?
  2. be able to hold punches on the bag?
  3. When I did not use the spring, it caused a lot of vibration. Would that be damaging?