Use a Phillip screw driver
1 3/4" (1.75")
Remove the base (leave the bracket on the wall). Thread the set screw all the way through and back out again. Re-mount the base on the bracket and tighten the set screw.
You need to use the plastic expands for the holes first and make sure the hole is not to big or it will not work then put the metal plate and screws on do by hand screw driver then put your ring on and use a eye glass screw driver to tighten it up
Dan, Thank you for taking the time to leave us your thoughts. I am sorry the ring did not meet your expectations. Please know that our Customer Care Specialists are available to offer any assistance with installation or to address any concerns you may have. They are available Monday – Friday 8:00 a.m. to 5:00 p.m. EST. and can be reached at 800-635-2731 or by email at email@example.com. Best, Customer Care Team