Baldwin Estates Single Cylinder Contemporary Deadbolts for 2-1/8" Door Prep. Stylish low profile deadbolts will cover a 2-1/8" cylindrical cutout and feature a 1" throw that is saw-proof, a strike plate reinforcer, solid brass trim rings and Schlage C Keyway. Grade 1. Adjustable backset: 2-3/8" and 2-3/4". For 1-3/4" thick doors. Edge bore: 1", Cross Bore: 2-1/8", Proj: 9/16". Distressed Oil Rubbed Bronze finish.