NEW! MARKS USA Auto-Reverse Grade 1 Mortise Lockset

Amityville, NY, MARKS USA proudly announces the new auto-reverse feature on their popular 5 Series Mortise Lock (patent pending). The advantage of the new auto-reverse feature is that it enables the installer to reverse the handing of the lockset without removing the cover. In five simple steps, security professionals can go from left hand to right hand, without ever compromising the integrity and position of the internal lock parts.

Marks USA’s Grade 1 Mortise Locks are BHMA Certified, meet ANSI specifications and are backed by the Company’s legendary Lifetime Mechanical Warranty. The mortise locks are thru-bolted for proper alignment and ease of installation, have self-adjusting spindles and independent lever support springs. Available with an ever-increasing variety of knobs, levers, roses and plates, as well as custom trim, Marks USA’s 5 Series Mortise Locks can easily accommodate even the most challenging customer needs.

Marks USA (a subsidiary of NAPCO Security Technologies, Inc.), manufactures mortise, cylindrical and tubular locks in a large variety of designs, functions and finishes for more than thirty years. Custom trim with engraving, conventional and HI-SECURITY™ keying systems, electronic and biometric access control are all offered for your residential, commercial, or industrial projects. For more information on Marks Products, visit our Website @

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