Mounting collars are sold in kit form, including the appropriate adjustment bolts and rubber cushions. Mounting bolts are not included (for hole marked D). Standard collars are carbon steel plated with zinc. Stainless collars are 300 series stainless.
WARNING: This product can expose you to chemicals which are known to the state of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov