Collection: CORONA Finish: STAINLESS STEEL Application: MANUAL . Easy installation Fits all standard door preparations Keyed entry function with turn button locking Can be rekeyed to match existing locks or other locks purchased Certified commercial grade 3 Stainless steel finish SPECIFICATIONS: Backset: universal - fits either 2-3/8" or 2-3/4" backset Door thickness range: 1-3/8" to 1-3/4" standard