What is an ANSI (American National Standards Institute) Grade 1 rating on a deadbolt?
The American National Standards Institute sets three levels of security for deadbolts, Grades 1, 2, and 3. Grade 1 standards are the highest possible resistance to several types of forced-entry tests, including prying and kicking. An ANSI Grade 1 rating ensures that you have purchased the highest-rated security deadbolt available.