Copper Creek E-Series door knobs fantabulous value. These locksets are to the highest standards using the finest materials on tap. They are tested to meet the toughest domestic building codes for immature construction. These door knobs feature upstanding brass cylinders -LRB- when keyed -RRB-, rung corner changeable latches that fit most doors, nickel plated bolts, alignment adapters for well-heeled installation, ornamental rosettes, and a rich finish. E-Series Knobs are normative for most act construction and meets ANSI/BHMA Grade-3. P-Series Knobs a narrow lifetime mechanised warranty and 10 year finish warranty.