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The EMTEK LC4-DLB275R-US7 is a deadlatch designed for use with key-in lever or knob locksets. It features a 2.75-inch backset and a 0.25-inch radius corner faceplate, making it compatible with standard residential and light commercial door prep work. Finished in French Antique Brass, this deadlatch provides both mechanical function and a consistent aesthetic match for coordinated door hardware installations. It is installed by carpenters, locksmiths, and general contractors during new construction or door hardware replacement projects.
This deadlatch is suited for interior and exterior door applications where a key-in lever or knob entry function is required. The 2.75-inch backset fits standard door bore preparations common in residential construction. The radius corner faceplate aligns with pre-routed door edge mortises that have rounded corners, reducing the need for additional chiseling during installation.
Designed as an OEM-style replacement or new-installation deadlatch for key-in lever or knob entry locksets requiring a 2.75-inch backset and a 0.25-inch radius corner faceplate configuration.
Installation is typically performed by a licensed locksmith, carpenter, or general contractor. Before servicing or replacing door hardware, ensure the door is stable and the existing lockset is fully removed. Verify door edge mortise dimensions match the faceplate size and corner radius before fastening. Follow local building codes for egress and security hardware requirements.
WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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