A quick learner from South carolina says:
August 5, 2012
Need to know the thickness of deadbolt. If it is 1 5/8 or more it will interfere with my main door hardware. Thank you.
Tom from SWISCO responded:
August 6, 2012
Thanks for posting! The thickness of the interior deadbolt, including the lever, is approximately 1-1/8". The total thickness of the keyed exterior part is approximately 1-7/16".