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Home › Grade 1 Mortise Locks › PDQ MR Series

  PDQ MR Series: Industrial-Grade Mortise Locks Tested for 11 Million Cycles   

The PDQ MR Series is a heavy-duty Grade 1 mortise lock designed for the most demanding architectural applications. While the industry standard for Grade 1 is 1 million cycles, the MR Series has been independently tested to exceed 11 million cycles, making it one of the most durable locks on the market. Built with a 12-gauge cold-rolled steel case and investment-cast stainless steel components, this series provides uncompromising security for schools, hospitals, and high-traffic government buildings.  

PDQ MR Series  

When your project demands a mix of high-security and aesthetic versatility, the PDQ MR Series delivers. This ANSI/BHMA Grade 1 mortise lockset features a unique single-cam design that allows for easy field-functional changes and non-handed installation. Available in over 10 lever styles and modern finishes like Flat Black and Satin Stainless Steel, the MR Series offers a sleek, low-profile look without sacrificing the 3-hour UL fire rating or windstorm certification required for modern life-safety codes.

FeatureSpecification
CertificationANSI/BHMA A156.13, Series 1000, Grade 1
Cycle TestingTested to 11 Million+ Cycles
Case Material12-Gauge Cold-Rolled Steel (Zinc Dichromate plated)
Deadbolt1" Throw, Investment-Cast Stainless Steel
HandingField-Reversible (without opening lock case)
Fire RatingUL/ULC Listed 3-Hour (A-Label)
WarrantyLimited Lifetime Warranty

 

PDQ MR Series buying guide

  • Match the function: use the function on your hardware schedule, for example MR126 passage, MR115 storeroom or MR148 classroom.
  • Pick the trim: escutcheon, sectional or square rose sectional trim. Each template below lists the MR functions it covers.
  • Pick the lever and finish: the catalog shows the lever styles (for example Philadelphia PJ, Boston BJ, Miami MJ) and finishes from 630 satin stainless to 622 flat black.
  • Indicators and electrified: privacy and security indicator instructions and the electrified wiring instructions are in the documents below.

MR Series Locksets

The PDQ MR Series represents the pinnacle of commercial mortise lock engineering. Certified to ANSI/BHMA A156.13 Grade 1, these locks feature a 12-gauge cold-rolled steel case and a patented design with fewer moving parts than traditional mortise locks. Whether you need a Passage (MR126), Storeroom (MR115), or Classroom (MR148) function, the MR Series provides a flexible single-cam design that accommodates nearly any locking requirement.  

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Frequently asked questions

How do I find the right MR template?

Each template above lists the MR functions it covers. Pick the one for your function and trim type (escutcheon, sectional or square rose).

Which documents do I need before I order?

The catalog for the function and trim, and the template for your exact function and trim. Templates are not interchangeable across series. All documents are in the section above.

When will my order ship?

Orders placed by 2:00 PM ET ship the same day for in-stock items only. Lead time is shown on each product page.

How does this series compare with the other Grade 1 mortise locks?

See the Grade 1 mortise lock comparison page for all five series.