Adams Rite 4913-26-IB Mortise Lock Heavy Duty Deadlatch

Adams Rite 4913-26-IB Heavy Duty Deadlatch Mortise Lock, Body Only, 31/32" Backset, RH or LHR, Zinc Plated, Without Faceplate or Strike. This mortise lock is part of Adams Rite’s 4900-series heavy‑duty deadlatch lineup, engineered for flexible traffic control on commercial and institutional doors, with a lock body designed to be paired with a separately ordered strike and faceplate. It accepts standard mortise cylinders with MS cam, including 1-5/32" diameter cylinders, though the cylinder is not included with this body‑only model, and it is handed as RH or LHR to suit door orientation. The backset measures 31/32" (24.6 mm), and the zinc plating provides corrosion resistance for door assemblies in typical indoor environments. This model emphasizes robust latching performance in high‑traffic settings while allowing you to select compatible trim and strike hardware to complete the installation.