4600LN Cylindrical Lock

The 4600LN Series is an ANSI/BHMA Grade 2 cylindrical lever lockset engineered for medium-duty commercial, multi-family, and institutional applications. The heavy-duty cylindrical chassis and bearing-style lever return provide reliable operation in offices, schools, apartments, and healthcare corridors.

4600LN locks carry ANSI A156.2 Series 4000 Grade 2 certification and UL/cUL listings for 3-hour fire doors (with appropriate strike). A field-reversible non-handed chassis, 2-3/4" standard backset (2-3/8" optional), and adjustable latches fit doors from 1-3/8" to 1-3/4" thick without special ordering.

The complete function range — Passage (01), Privacy (02), Entry (04, 07), Storeroom (05), Single Dummy (55), and Communicating Passage (28) — covers virtually every commercial opening type. Levers are available in multiple designs (Augusta, Monroe, Pacific Beach, and more), all compatible with standard 6-pin KW-1, SC-1, or PARA keyways. Backed by a 3-year manufacturer warranty.