Knob Function:Single Cylinder Deadbolt, Backset:Adjustable This drop latch set comes with two handles and deadbolt, and is crafted in rough iron, with a natural-weathered appearance reminiscent of old European castles and cathedrals. No springs are included, and the drop latch operates by gravity only. Fits all pre-drilled doors with standard 2-1/8" crossbore and 15/16" edgebore. Cylinder is solid brass with five-pin tumbler and nickel silver pins. Reversible, so fits right-hand and left-hand doors without cylinder assembly removal. Preparation depth of 3-5/8" (note depth for doors with large windows). Adjustable backset fits either 2-3/8" or 2" back sets. Front: 1" x 2"Deadbolt: 1" throw, Schlage type-C keywayHandle: 11" x 3-7/16", 2-3/8" projection Door Hardware Planning & Measuring Guide