Standard Features:Door Thickness: 1-3/8" to 1-3/4" (35mm to 45mm) standard.Construction: Products are stainless steel or brass based to match finishes indicated.Key: 5-pins tumbler KW1 keyway with brass keys. Various keyways selectable.Standard: Adjustable 2-3/8"(60mm) and 2-3/4"(70mm) backset.Single or double cylinder.