David Bolton ANSI Lockset Grades Explained: How to Match Grade 1, 2, or 3 to the Opening in Front of You Why the Grade Number on a Lockset Actually Matters This guide is for facility managers, commercial contractors, and specifiers who need to match an ANSI/BHMA lockset grade to a specific opening withou... ANSI BHMA grades commercial door hardware cylindrical locks hardware specification locksets Aug 10, 2026
