Corbin Russwin ML2017 Grade 1 ...
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$670.31
$387.82
Corbin Russwin ML2017 Classroom Function Cylinder x Thumbturn Deadbolt Only

Corbin Russwin ML2017 Grade 1 Classroom Function Cylinder x Thumbturn Deadbolt Only

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Model: ML2017 626
From the ML2000_Series Collection
$670.31
$387.82
Selected Finish is
  • Corbin Russwin ADDER-CORBIN RUSSWIN-[KEYING]=KD - Keyed Different ADDER-CORBIN RUSSWIN-[KEYING]=KD - Keyed Different
  • Corbin Russwin ADDER-CORBIN RUSSWIN-[KEYING]=KA - Keyed Alike ADDER-CORBIN RUSSWIN-[KEYING]=KA - Keyed Alike

In Stock (leaves warehouse same day if ordered before 3pm ET)

$670.31
$387.82
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Corbin Russwin ML2017 Classroom Function Mortise Lock Cylinder x Thumbturn Deadbolt, Grade 1, Field Reversible

Commercial-Grade Classroom Security with Patented Quick Reversible Latchbolt Technology

The Corbin Russwin ML2017 is a Grade 1 mortise lock from the ML2000 Series, engineered for demanding classroom, institutional, and high-traffic commercial applications. This Classroom Function model features a cylinder-operated deadbolt from the outside and an interior thumbturn grip that retracts the deadbolt only — the thumbturn will not project the deadbolt. Constructed of heavy-gauge steel with a 1" stainless steel deadbolt and a 3/4" latchbolt, the ML2017 is designed for 1-3/4" door thickness and delivers both life safety and security in a single door preparation. The ML2000 Series has been UL cycle tested above and beyond standard requirements, completing 14.5 Million Cycles (Verification ID: V875753), making it an ideal solution for offices, schools, hospitals, hotels, and other high-use environments.

Professional Features & Benefits

  • ANSI/BHMA Grade 1 mortise lock per A156.13 Series 1000, Operational and Security Grade 1
  • UL Cycle above and beyond: 14.5 Million Cycles (Verification ID: V875753)
  • Patented Quick Reversible latchbolt — reverse handing without disassembling the lock case
  • Multi-function capability: 12 functions configurable from one ML2054 lockbody
  • Heavy-gauge steel lockcase 5-7/8" x 4" x 15/16"; 1" stainless steel deadbolt, 1" throw
  • 3/4" (19mm) throw anti-friction two-piece latchbolt requires less force to close
  • Wide variety of trim designs including Muséo®, Vineyard™, Behavioral Health (BHSS/BLSS)
  • Status indicator options for locked/unlocked visibility (sectional and escutcheon trim)
  • Motorized Electric Latch Retraction (MELR) available for ML20900 series
  • Thru-bolted trim designs for proper alignment and increased security
  • Can be used with new or existing Corbin Russwin key systems; accepts most other manufacturers' cylinders
  • UL/cUL listed, UL10C positive pressure; 3-hour fire door up to 4' x 10' single or 8' x 10' pair
  • Ten-year mechanical warranty; five-year MELR; two-year electrical

Technical Specifications

  • Grade: ANSI/BHMA A156.13 Series 1000, Operational and Security Grade 1
  • Handing: Handed; quick reversible — re-handed without disassembling the lock case
  • Door Thickness: 1-3/4" (44mm) standard; optional thicknesses available
  • Backset: 2-3/4" (70mm)
  • Lockcase: Heavy-gauge steel, 5-7/8" (149mm) x 4" (102mm) x 15/16" (24mm)
  • Armored Front: Wrought brass, bronze, or stainless steel, 8" x 1-1/4"
  • Latchbolt: 2-piece mechanical with anti-friction insert, 5/8" x 1" x 3/4" (19mm) throw
  • Auxiliary Latchbolt: 9/16" (14mm) effective throw; deadlocking
  • Deadbolt: One-piece stainless steel, 19/32" x 1-1/4" x 1" (25mm) throw
  • Strike: Wrought brass, bronze, or stainless steel, ANSI straight lip, 4-7/8" x 1-1/4" x 1-1/8" lip to center
  • Cylinder: Brass, 6-pin L4 keyway, 0-bitted standard
  • Spacing: C. to c. knob/lever to cylinder: 3-5/8" (92mm); knob/lever to thumbturn: 2-7/16" (62mm)
  • Certifications: ANSI/BHMA A156.13 Grade 1; UL/cUL UL10C 3-hour positive pressure; ADA A117.1; California State Fire Marshal; Windstorm/Hurricane certified
  • Warranty: Ten-year mechanical; five-year MELR; two-year electrical

Professional Applications

  • Educational Facilities and Classroom Environments
  • Commercial Office Buildings
  • Healthcare Institutions and Hospitals
  • Hotels and Hospitality Properties
  • Government and Municipal Buildings
  • Industrial and Institutional Facilities
  • Multi-Tenant Residential and Mixed-Use Properties

Tamper-Resistant Design

The ML2000VR (Vandal Resistant) Series option features stainless steel escutcheons with tapered edges and Torx® pin tamper-resistant screws, providing a vandal-resistant barrier that discourages intrusion and abuse in high-risk environments.

Why Choose Corbin Russwin Quality?

Corbin Russwin ML2000 Series mortise locks deliver professional-grade reliability built from heavy-gauge steel with a 1" stainless steel deadbolt, rated for an extraordinary 14.5 Million UL-verified cycles (Verification ID: V875753). Backed by a 10 Year Limited warranty and ANSI/BHMA Grade 1 certification, these locks are engineered for the most demanding commercial, institutional, and government applications where dependable, long-term performance is essential.

Product Specs

Subcategory:
Mortise Locks
Product Group:
Mechanical Locks
Series:
ML2000 Series
Grade:
Grade 1
Keyed Function:
Single Cylinder
Standard Cylinder:
Conventional 6-pin, L4 Keyway, 0 Bitted Keying
Standard Strike:
ANSI straight lip standard, 4-7/8" x 1-1/4" x 1-1/8"
Warranty:
10 Year Limited
ANSI/BHMA:
F11
Product Subgroup:
Mortise Locks and Trim
Product Type:
Mortise Locks
Keyed:
Yes
Latch Throw:
3/4" Latchbolt, 1" Deadbolt
Commercial/Residential:
Commercial
Function Description:
Latchbolt by grip either side, unless outside grip is locked by toggle-action stop or by projection of deadbolt. Deadbolt thrown by key from either side. Deadbolt and latchbolt retracted by outside key when outside grip locked.
Lock Type:
Mortise
Lock Function:
Classroom Function Cylinder x Thumbturn
Product Attribute:
Mortise Locks
Electronic:
No
Product Model:
ML2013
Collection:
ML2000_Series
Product Function:
Classroom
Door Hand Direction:
Field Reversible
Door Thickness Range:
1-3/4"
Product Substrate:
Brass or Bronze
Product Category:
Mechanical Locks
Department:
Door Hardware

Corbin Russwin ML2017 626 – Frequently Asked Questions

1) Will the Corbin Russwin ML2017 mortise lock fit a standard 1-3/4 inch commercial door?
Yes. The ML2017 is built for 1-3/4 inch (44mm) door thickness, which is the standard commercial door, and it uses a 2-3/4 inch (70mm) backset. Optional thicknesses are available from the ML2000 Series if your doors run heavier. The lock case itself measures 5-7/8 x 4 x 15/16 inches and the armored front is 8 x 1-1/4 inches, so the door needs a standard ANSI mortise pocket cut for that case and front.
2) Do I have to specify handing when ordering an ML2017 mortise lock?
Handing is field reversible on the ML2017. The patented Quick Reversible latchbolt lets you re-hand the lock without pulling the case apart, so a lock pulled for a left-hand opening can be flipped on site for a right-hand one. That is useful for a facility standardizing one part number across a whole building instead of stocking both hands.
3) Will the ML2017 latch into the strike already in my frame?
The latchbolt throws 3/4 inch (19mm) and the deadbolt throws a full 1 inch, with a 9/16 inch auxiliary deadlocking latch. It ships with an ANSI straight lip strike, 4-7/8 x 1-1/4 inches with 1-1/8 inch lip to center. If your frame already has a standard ANSI 4-7/8 inch mortise strike prep with a deadbolt pocket deep enough for a 1 inch bolt, it drops in; a frame cut only for a latch with no deadbolt cavity will need work.
4) What exactly does the classroom cylinder x thumbturn version of the ML2017 do?
The ML2017 is a deadbolt-only classroom function: a key cylinder on the outside and a thumbturn on the inside, with no knob or lever function in this configuration. It is single cylinder keyed. That makes it the deadbolt half of a classroom opening, typically paired with separate trim or a latching device for everyday use.
5) Can I key the ML2017 into my existing Corbin Russwin master key system, or use a different brand's cylinder?
Both work. The ML2000 Series accepts new or existing Corbin Russwin key systems and takes most other manufacturers' cylinders. As supplied, the standard cylinder is a conventional 6-pin brass unit in the L4 keyway, 0-bitted. If you run small format or large format interchangeable cores, order the 7-pin LFIC less core option and drop in your own cores.
6) Is the ML2017 approved for a fire-rated classroom door?
It is UL and cUL listed and carries UL10C positive pressure, rated for 3-hour fire doors up to 4 x 10 feet single or 8 x 10 feet pair. It also meets ANSI/BHMA A156.13 Series 1000, Operational and Security Grade 1, and ADA A117.1, with California State Fire Marshal and windstorm/hurricane certification. UL cycle testing was verified at 14.5 million cycles (Verification ID V875753).
7) What is a mechanical alternative to the Corbin Russwin ML2017 classroom mortise lock from another manufacturer?
The Cal-Royal NM8070 is a heavy duty Grade 1 classroom mortise lockset with an auxiliary deadlatch, built for 1-3/4 inch doors. That matches the ML2017 on grade, classroom function, and 1-3/4 inch door thickness, and like the ML2017 it is a purely mechanical lock with no electronics. The ML2017 differs in that its classroom arrangement is cylinder outside by thumbturn inside on the deadbolt, with the thumbturn retracting the deadbolt only.
8) If the classroom door needs lockdown from inside without a key, what replaces the ML2017?
Look at the Marks USA LA318GJ classroom security indicator mortise lockset, a Grade 1 lock for 1-3/4 inch doors with a visual status indicator and an ANSI strike. The TownSteel FME-4000 Series is an electronic intruder classroom mortise lockset with RFID, also Grade 1 heavy duty for 1-3/4 inch doors. The ML2017 is a keyed mechanical lock whose inside thumbturn retracts the deadbolt only and will not project it, so inside lockdown of the deadbolt is not part of its function.
9) Is a Sargent 4874 mortise deadbolt a substitute for the ML2017?
No. The Sargent 4874 is a double cylinder mortise deadbolt with a 2-3/4 inch backset, and the Kaba Ilco 185 Series is a no-handing mortise deadbolt as well. Both are deadbolt-only cases with no latchbolt. The ML2017 is a complete classroom mortise lock with a 3/4 inch latchbolt plus a 1 inch deadbolt, so it operates the door as well as securing it. If the existing prep only holds a deadbolt case, the 4874 is the closer fit; if it is a full ANSI mortise pocket, the ML2017 fills it.
10) Can I get several ML2017 locks keyed alike for one building?
Keying is a required selection: keyed different is the standard, and keyed alike is available when you want one key to run multiple doors. There is also a free-text field for special cylinder or keying requirements, so master keying instructions or a specific keyway can be submitted with the order.
11) Does the ML2017 use the same lock body as other ML2000 functions if we need to change function later?
The ML2000 Series is multi-function: 12 functions are configurable from a single ML2054 lockbody, which is why a facility can standardize on one case and change what the opening does later. The series also offers status indicator trim for locked/unlocked visibility on sectional and escutcheon designs, and the ML2000VR vandal resistant option with stainless escutcheons and Torx pin tamper-resistant screws for high-abuse areas.
12) Is there a keypad classroom mortise lock to use instead of a keyed ML2017?
Yes. The Alarm Lock DL2700CR Trilogy T2 is a Grade 1 electronic mortise lock with classroom function and weatherproof design for 1-5/8 to 1-7/8 inch doors, and the DL3500CR adds 300 user codes on the same classroom function and door range. The TownSteel FME-2000 Series is a Grade 1 heavy duty classroom mortise lockset with RFID credentials for 1-3/4 inch doors. The ML2017 is keyed and non-electronic, using a conventional 6-pin L4 keyway cylinder.
13) What should I use if the opening needs storeroom function instead of classroom?
The Accentra 8805FL is a Grade 1 storeroom mortise lock in the 8800 Series supplied with an Arcadia lever, and the Cal-Royal NM8080 is a Grade 1 storeroom mortise lockset for 1-3/4 inch doors with an interchangeable core option. The ML2017 is classroom function, where the deadbolt is thrown by key from either side rather than the outside lever being permanently locked.
14) I only need the thumbturn, not a whole lock. Is the ML2017 the right order?
No. The ML2017 is a complete Grade 1 mortise lockset. For a thumbturn alone, the Sargent 130KB is a standard duty mortise thumbturn for the 8200 Series and the Sargent 130W is a mortise thumbturn with a round backplate for the 7800 Series.
15) What is the closest option if the door is thicker than 1-3/4 inches?
The Hager 3800 Series covers 1-3/4 to 2-1/2 inch doors in the 3810E passage with escutcheon and 3810S passage with rose, both on a 2-3/4 inch backset, and the Hager 3840S privacy spans 1-3/4 to 2 inches. Those are non-keyed functions, so they suit an opening that does not need a classroom cylinder. The ML2017 is built for 1-3/4 inch doors on a 2-3/4 inch backset.
16) For a dormitory or corridor door, is there a Grade 1 mortise lock closer to that function than the ML2017?
The Sargent 7925 is a Grade 1 heavy duty corridor/dormitory exit function mortise lock in the 7900 Series with rose trim and a single cylinder deadbolt. The ML2017 is also single cylinder keyed, but its function is classroom with a cylinder outside and thumbturn inside on the deadbolt.
17) Can I use an Emtek mortise entrance lockset in place of the ML2017?
The Emtek 3019 Brisbane, 3102 Memphis, 3104 Hamilton and 3106 Manhattan mortise entrance locksets are dummy function, meaning no latch operation and no keying. The ML2017 is a keyed Grade 1 commercial classroom lock with a 3/4 inch latchbolt and 1 inch deadbolt, so the Emtek dummy sets serve only an inactive leaf.
18) If the classroom door has to tie into access control, what mortise lock replaces the ML2017?
For electrified mortise, the Command Access ML190 Series is a heavy-duty motorized mortise lock with field selectable EL/EU operation on 24VDC in storeroom function, and the BEST 45HW Series is a wired electromechanical mortise lock with 12V/24V operation. The Schlage L9092EU with 03A trim is a heavy duty electric lock/unlock outside lever mortise lock, keyed outside, with request to exit, at 12/24VDC for 1-3/4 inch doors. The ML2017 is mechanical only.
19) For a behavioral health room, is the ML2017 the right mortise lock or is there an anti-ligature option?
TownSteel offers anti-ligature mortise locksets: the MRX-A-01 with satin stainless ligature resistant arch trim and the MRX-L-01 stainless steel anti-ligature lever, both Grade 1 heavy duty passage function for 1-3/4 inch doors. The Marks USA 5PDN is a Grade 1 hospital passage mortise push/pull paddleset, ligature resistant and ADA compliant in satin stainless. The ML2017 is a keyed classroom lock, and Corbin Russwin lists Behavioral Health BHSS and BLSS trim among the ML2000 trim designs.
20) What finishes does the Corbin Russwin ML2017 come in, and do they match existing hardware?
Fourteen finishes are offered across both cylinder configurations: 605 bright brass, 606 satin brass, 611 bright bronze, 612 satin bronze, 613 satin bronze oil-rubbed, 613E dark oxidized satin bronze equivalent, 618 bright nickel, 619 satin nickel, 625 bright chrome, 626 satin chrome, 629 bright stainless, 630 satin stainless, 722 black oxidized bronze oil-rubbed, and BSP black suede powder coat. 626 and 630 are the usual commercial and institutional standards, so matching an existing school or office opening is normally one of those two. The substrate is brass or bronze.
21) What is a comparable field reversible Grade 1 mortise lock for a non-keyed opening on the same job?
The Falcon MA101 is a Grade 1 heavy duty mortise passage lock with field reversible operation and a fire rating, in the MA Series. The Schlage PM010 is a Grade 1 non-keyed passage latch mortise lock for 1-3/4 inch doors. Both leave the opening free-swinging, while the ML2017 is keyed classroom function and is also field reversible.
How fast can I get the Corbin Russwin ML2017 626 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Corbin Russwin ML2017 626 come with a warranty?
Absolutely. The Corbin Russwin ML2017 626 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Corbin Russwin ML2017 626?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Corbin Russwin ML2017 626 from ZenSupply?
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