Bright Brass, Plymouth Single Cylinder Handle Set, Exterior Side Only, Easy Installation, ANSI Grade 1 With Maximum Security Features, Lifetime Finish & Mechanical Guarantee, B-Series Deadbolt With Increased Security & Easier Installation, 1/2" Of Bolt Left In Housing When Bolt Is Thrown For Added Kick In Resistance, Anti-Pick Shield With Snap & Stay Self Adjusting Tension, Zinc Bolt Has Hardened Steel Pin Inside That Spins In Response To Sawing Attacks Which Prevents Cutting Or Sawing Bolt Diameter Is 10% Larger Than Typical Bolts, For Maximum Kick In Resistance, Adjustable Backset With The Industry's Only Helical Design That Locks Into Place With No Adjusting During Installation Works For Both 2-3/8" & 2-3/4".