Cal Royal One Sided Deadbolt ID-801

2 3/8" or 2 3/4" adjustable backset, size 1" x 2 1/4" round corner standard Square corner also available. Drive in adjustable backset is also available. All exterior parts are brass. ANSI Standard A156.2 Grade 3. Full 1" throw deadbolt with hardened steel pin to prevent saw cutting. Fits 1 3/8" to 1 3/4" doors. 1" x 2 1/4" strike,round corner and full lip strike round corner standard. Square corner option also available. For wood and metal doors. Easy installation. 5-Year Warranty, 25-Year Mechanical Warranty