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Grade 1 Commercial Mortise Locks

When a hardware schedule calls for a Grade 1 mortise lock, it is asking for an ANSI/BHMA A156.13 lockbody on a commercial or institutional door -- the lock that sits in a pocket in the door edge, not a cylindrical lock bored through the face. The five series on this page are built for that spec: Sargent 8200, Accentra 8800FL, Corbin Russwin ML2000, Hager 3800, and PDQ MR.

What is the difference between a mortise lock and a cylindrical lock?

A mortise lockset takes its name from the mortise: a rectangular pocket cut into the door edge. The lockbody goes in that pocket, and the levers or knobs mount on the faces. A cylindrical lockset is a different door prep and a different lockbody -- it installs through a bored hole in the face of the door. Specifiers write mortise when the opening was drawn that way, or when the job needs the heavier steel case and the function range a Grade 1 mortise series is cataloged for.

Which Grade 1 mortise series is on the schedule?

If the set already names 8200, 8800FL, ML2000, 3800, or MR, open that card. If you are comparing manufacturers, the cards state what each catalog prints for grade, handing, and warranty. Functions, trims, and finishes are on the series page -- this page is the manufacturer crosswalk, not a substitute for the function list.

Sargent 8204 LW1L 32D mortise lock

8200 Series

The Sargent 8200 Series is a heavy-duty mortise lock certified to ANSI/BHMA A156.13, Series 1000, Operational Grade 1 and Security Grade 1 with standard trims. The lockbody re-hands without opening the case.

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Accentra 8847 PBR 626 mortise lock

8800FL Series

ASSA ABLOY Accentra 8800FL Series mortise locks are ANSI/BHMA Grade 1 certified. The lock body has field-reversible lever handing and latchbolt. Mechanical 8800 Series locks carry a ten-year warranty.

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Corbin Russwin ML2057 LWM 722 mortise lock

ML2000 Series

Corbin Russwin ML2000 Series mortise locks are certified ANSI/BHMA A156.13 Series 1000, Operational and Security Grade 1. The heavy-gauge steel lockcase re-hands without disassembling the case. Shop by trim design: sectional, escutcheon, electrified or Behavioral Health.

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Hager 3853 ESC WTN US26D mortise lock

3800 Series

The Hager 3800 Series is certified ANSI/BHMA A156.13, Series 1000, Grade 1. Functions are UL/cUL listed up to 3 hours on A-label single doors. Lock-body handing is field reversible.

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PDQ MR115 PJEW 630 mortise lock

MR Series

PDQ MR Series mortise locks are certified ANSI/BHMA A156.13 Operational Grade 1 and Security Grade 1. Cycle testing is published at over 11 million cycles. Chassis warranty is lifetime limited.

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Buying guide

  • Pick the line: open the card for the series on your hardware schedule: Sargent 8200, Accentra 8800FL, Corbin Russwin ML2000, Hager 3800 or PDQ MR.
  • Corbin Russwin ML2000: choose the trim design first (sectional, escutcheon, electrified or Behavioral Health) on the ML2000 trim designs page. Lockbodies and parts are on the ML2000 series page.
  • Pick the function: match the function on the schedule, such as storeroom, entry and office, classroom, privacy, passage, dormitory, apartment corridor, faculty restroom or dummy trim.
  • Pick the trim: escutcheon (plate) or sectional (rose) trim, then the lever design and finish on the series page.
  • Special applications: ligature-resistant trim for Behavioral Health spaces, such as Sargent 8200 BHW and Corbin Russwin BHSS and BLSS.
  • Check the door prep: a mortise lock needs a pocket cut in the door edge. Use the series template in the documents below before prepping the door.

Catalogs, parts manuals, templates & installation instructions

Match the document to your exact series, function and trim. Templates are not interchangeable across series.

Catalogs
Parts manuals
Templates
Installation instructions

Frequently asked questions

Mortise or cylindrical lock?

A mortise lock fits a pocket cut into the door edge and is common on heavy-use commercial doors. A cylindrical lock fits bored holes through the face of the door. Match the lock to the door prep and the hardware schedule.

Which function do I need?

Match the function to how the door should lock, for example storeroom, office and entry, classroom, privacy or passage. Each series page lists its functions, trims and finishes.

Where are the Corbin Russwin ML2000 locks?

On the ML2000 trim designs page, grouped by trim: sectional, escutcheon, electrified and Behavioral Health. ML2000 lockbodies and parts are on the ML2000 series page.

Do you have templates and installation instructions?

Yes. Catalogs, parts manuals, templates and installation instructions for all five series are in the documents 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.