Corbin Russwin DL3217 Grade 1 ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$319.61
$186.47
Corbin Russwin DL3217 Grade 1 Cylindrical Deadlock, Classroom Function

Corbin Russwin DL3217 Grade 1 Cylindrical Deadlock, Classroom Function

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Model: DL3217 626
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$319.61
$186.47
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Corbin Russwin DL3217-KEYED Cylindrical Deadlock with Classroom Function, Single Cylinder, Non-Handed

Commercial-Grade Cylindrical Deadlock for Classroom Security Applications

The Corbin Russwin DL3217-KEYED is a heavy-duty cylindrical deadlock from the DL3200 Series, engineered for classroom function in commercial environments. Operated by key from outside and by thumbturn from inside, this single-cylinder deadlock features a 1" throw solid steel deadbolt with a hardened, free-spinning steel pin insert for superior forced-entry resistance. Designed for standard 1-3/4" (44mm) door thickness with a standard 2-3/4" (70mm) backset, the DL3217-KEYED is non-handed for simplified installation across a wide range of door configurations. The front plate is wrought brass or bronze measuring 2-1/4" (57mm) x 1-1/8" (29mm), and the unit meets ANSI/BHMA E0170 Series standards for commercial-grade performance.

Professional Features & Benefits

  • Classroom Function Operation: Operated by key outside and by thumbturn inside; the thumbturn will retract but not project the deadbolt, providing controlled access ideal for classroom security applications.
  • 1" Throw Solid Steel Deadbolt: Features a 1" throw deadbolt constructed of solid steel with a hardened, free-spinning steel pin insert for exceptional resistance to cutting and forced entry.
  • Door Thickness & Backset Compatibility: Standard installation on 1-3/4" (44mm) doors with a standard 2-3/4" (70mm) backset; optional 2-3/8" (60mm) backset available for flexible installation requirements.
  • Non-Handed Design: Universal non-handed configuration eliminates handing concerns, simplifying ordering and installation across left-hand and right-hand door applications.
  • Conventional 6-Pin Cylinder with L4 Keyway: Brass, 6-pin cylinder with L4 keyway, supplied 0-bitted with two nickel silver keys standard; security cylinders available as an option.
  • Advanced Keying Options: Supports master keying, construction master keying, security keying, visual key control, and concealed key control for comprehensive key management in institutional settings.
  • Wrought Brass or Bronze Front Plate: Standard front measures 2-1/4" (57mm) x 1-1/8" (29mm); standard strike measures 2-3/4" (70mm) x 1-1/8" (29mm) with optional strikes and wrought boxes available.
  • ANSI/BHMA Compliance: Meets E0170 Series standards, confirming commercial-grade quality and performance for institutional and commercial applications.
  • Manufacturer Warranty: Backed by a 1 Year Limited warranty for added confidence and protection.

Technical Specifications

  • Subcategory: Deadlocks
  • Product Group: Mechanical Locks
  • Series: DL3200 Series
  • Keyed Function: Single Cylinder
  • Standard Cylinder: Conventional 6-pin Cylinder, L4 Keyway
  • Standard Latch: Deadbolt: 1" Throw, solid steel deadbolt with hardened, free spinning, steel pin insert.
  • Standard Strike: 2-3/4" x 1-1/8"
  • Warranty: 1 Year Limited
  • ANSI/BHMA: E0170 Series
  • Product Subgroup: Bored Locksets
  • Product Type: Deadbolts
  • Keyed: Yes
  • Commercial/Residential: Commercial
  • Function Description: By key outside and by thumbturn inside. Thumbturn will retract but not project deadbolt
  • Lock Type: Cylindrical
  • Lock Function: Classroom
  • Product Model: DL3217
  • Product Function: Classroom
  • Door Hand Direction: Non-Handed
  • Door Thickness Range: 1-3/4"
  • Product Category: Mechanical Locks
  • Backset (Distance): 2-3/4"
  • Department: Door Hardware

Professional Applications

  • Educational Facilities and Classroom Environments
  • Commercial Office Buildings
  • Healthcare Institutions
  • Government and Municipal Buildings
  • Retail Establishments
  • Multi-Tenant Residential Properties
  • Industrial and Warehouse Facilities

Why Choose Corbin Russwin Quality?

Corbin Russwin cylindrical deadlock products deliver professional-grade reliability with solid steel deadbolt construction featuring a hardened, free-spinning steel pin insert and a 1" throw for dependable security. The DL3200 Series meets ANSI/BHMA E0170 Series standards and is backed by a 1 Year Limited warranty, ensuring confidence in long-term commercial performance. Engineered for demanding institutional applications where consistent, code-compliant security is essential.

Manufacturer Resources

Corbin Russwin Condensed Catalog

Product Specs

Subcategory:
Deadlocks
Product Group:
Mechanical Locks
Series:
DL3200 Series
Keyed Function:
Single Cylinder
Standard Cylinder:
Conventional 6-pin Cylinder, L4 Keyway
Standard Latch:
Deadbolt: 1" Throw, solid steel deadbolt with hardened, free spinning, steel pin insert.
Standard Strike:
2-3/4" x 1-1/8"
Warranty:
1 Year Limited
ANSI/BHMA:
E0170 Series
Product Subgroup:
Bored Locksets
Product Type:
Deadbolts
Keyed:
Yes
Commercial/Residential:
Commercial
Function Description:
By key outside and by thumbturn inside. Thumbturn will retract but not project deadbolt
Lock Type:
Cylindrical
Lock Function:
Classroom
Product Model:
DL3217
Product Function:
Classroom
Door Hand Direction:
Non-Handed
Door Thickness Range:
1-3/4"
Product Category:
Mechanical Locks
Backset (Distance):
2-3/4"
Department:
Door Hardware

Corbin Russwin DL3217 626 – Frequently Asked Questions

1) What does classroom function mean on the Corbin Russwin DL3217 deadlock?
On the DL3217, the key works from the outside and there is a thumbturn inside, but the thumbturn only retracts the deadbolt, it cannot project it. That means a student or occupant can always get out and can unlock the door, but only a keyholder can lock it. If you want an occupant to be able to lock the door from inside during a lockdown, this is the wrong function.
2) What backset does the DL3217 cylindrical deadlock use, and can I get 2-3/8 inch?
Standard is a 2-3/4 inch (70mm) backset, which is what most commercial doors are prepped for. Corbin Russwin also lists a 2-3/8 inch (60mm) backset as an option on the DL3200 Series, so if you are working into an existing 2-3/8 inch bore you can specify that instead.
3) Will the DL3217 deadbolt reach my existing strike prep?
The deadbolt throws 1 inch and the standard strike supplied measures 2-3/4 x 1-1/8 inches. If your frame is already cut for a 2-3/4 x 1-1/8 inch strike with a deep enough pocket, the DL3217 drops in. Optional strikes and wrought boxes are available if your frame prep differs.
4) Which cylinder options can I order on the Corbin Russwin DL3217?
Three cylinder choices. The standard is a conventional brass 6-pin cylinder in the L4 keyway, supplied 0-bitted with two nickel silver keys. If your facility runs interchangeable core, order CL6 for a Corbin Russwin large format IC 6-pin prep less core, or CL7 for a 7-pin IC prep less core. The less-core options ship without the core, so you supply cores from your own system.
5) Can the DL3217 be master keyed into an existing school key system?
Yes. The DL3200 Series supports master keying, construction master keying, security keying, visual key control and concealed key control. Standard cylinders come 0-bitted so a locksmith can pin them to your existing system, and the CL6 or CL7 less-core versions let you drop in cores from a system you already run.
6) What is the difference between the DL3217 classroom deadlock and a standard cylinder-by-thumbturn deadbolt?
A normal single cylinder deadbolt, like the Dexter DB1000 or the Deltana CL200LM, lets the inside thumbturn both throw and retract the bolt. The DL3217's thumbturn only retracts. That is the whole point of classroom function: the room can always be exited and unlocked from inside, but locking is controlled by whoever holds the key. If you want occupants able to secure the door themselves, pick a cylinder-by-thumbturn deadbolt instead.
7) What other classroom function deadbolts could I use instead of the Corbin Russwin DL3217?
Two direct alternatives in the same function: the Falcon D111, a Grade 1 heavy duty classroom deadbolt in the D100 Series with adjustable backset, and the Hager 3118, a Grade 1 classroom deadbolt supplied with a Schlage C keyway 6-pin cylinder for 1-3/8 to 1-3/4 inch doors. The Falcon D211 is the medium duty Grade 2 version of the same function if the opening does not need Grade 1. Keyway is usually the deciding factor: the DL3217 runs L4 unless you order a less-core version.
8) What is a direct Grade 1 classroom-function deadbolt alternative to the Corbin Russwin DL3217?
Two close equivalents are the Falcon D111 and the Hager 3118. The Falcon D111 is a Grade 1 classroom deadbolt in the D100 Series with an adjustable backset, rated heavy duty. The Hager 3118 is a Grade 1 classroom deadbolt supplied with a 6-pin cylinder in the Schlage C keyway and fits doors 1-3/8 inch to 1-3/4 inch. The DL3217 itself is a classroom-function cylindrical deadlock keyed outside with a thumbturn inside that retracts but will not project the bolt, on a 2-3/4 inch backset for 1-3/4 inch doors. The practical difference is keying: the DL3217 ships with a conventional 6-pin L4 keyway, so if the building is keyed to Schlage C the Hager drops in without rekeying, and if it is keyed to Corbin Russwin L4 the DL3217 does.
9) What should I use instead if the door is thinner than 1-3/4 inch?
The Corbin Russwin DL3217 is specified for 1-3/4 inch door thickness. For a thinner door, the Accentra D111 is a Grade 1 single cylinder deadbolt that covers 1-3/8 inch to 1-3/4 inch with a 2-3/8 inch backset, and the Dexter DB1000 single cylinder is a Grade 1 deadbolt covering 1-3/8 inch to 1-7/8 inch. Both are cylinder-by-thumbturn rather than classroom function, so confirm whether the opening actually requires the classroom restriction before substituting.
10) We standardize on small format interchangeable core - what is the alternative to the Corbin Russwin DL3217 less-core option?
The DL3217 offers less-core cylinder options as CL6 for Corbin Russwin large format IC 6-pin and CL7 for 7-pin IC, both Corbin Russwin format. If your facility is keyed on small format interchangeable core, the Arrow E61 26D IC is a Grade 2 single cylinder deadlock prepped for SFIC and supplied less core, for doors 1-3/8 inch to 1-3/4 inch. The Deltana CL200LAIC is another less-cylinder interchangeable core option, Grade 2 with a 2-3/4 inch backset, and Delaney's LM Series 301702 is a Grade 1 single cylinder less-core deadbolt in dull chrome US26D.
11) Does the DL3217 work where a fire-rated deadbolt is required, or should I specify something else?
If the opening drawing calls for a fire rating on the deadbolt itself, look at the Hager 3118, a Grade 1 classroom deadbolt with a fire rating and a Schlage C 6-pin cylinder, or the Cal-Royal CRB800, a Grade 1 heavy duty single cylinder deadbolt with a UL 3-hour fire rated latch. The Corbin Russwin DL3217 is a commercial cylindrical deadlock meeting ANSI/BHMA E0170 Series with a 1 inch throw solid steel bolt carrying a hardened free-spinning steel pin insert.
12) Can I use a residential-style deadbolt like the Brinks Raleigh in place of the DL3217 on a school door?
They are not interchangeable in function. The Brinks Raleigh E2401 is a transitional round single cylinder deadbolt with a 4-way adjustable backset, operating cylinder by thumbturn - the inside turn both projects and retracts the bolt. The Corbin Russwin DL3217 is a commercial classroom-function deadlock where the inside thumbturn will retract but not project the deadbolt, which is the whole point of the classroom restriction. If the specification says classroom function, an entry-style cylinder-by-thumbturn deadbolt will not satisfy it.
13) The frame is prepped for a mortise deadbolt, not a bored deadlock - what do I order?
The Corbin Russwin DL3217 is a cylindrical deadlock in the bored lockset family, so it needs a bored cross-bore prep. For a mortise pocket, the Dormakaba D900 small case mortise deadbolt uses a D cylinder and is supplied keyed different with SC keyways, and the Dormakaba M1960 from the M1000 Series is a single cylinder deadbolt, cylinder by turn, with no trim. Neither offers the classroom restriction the DL3217 provides.
14) Do I have to specify handing when ordering the DL3217?
No handing to worry about. The DL3217 is non-handed, so one part number covers left-hand and right-hand openings. For a property manager stocking spares across a building, that means a single shelf item instead of two.
15) Is the Corbin Russwin DL3217 a Grade 1 commercial deadlock?
The DL3217 is built for commercial use and meets the ANSI/BHMA E0170 Series specification, which is the auxiliary lock designation covering this deadbolt's performance. The bolt itself is solid steel with a hardened, free-spinning steel pin insert to resist sawing.
16) Does the DL3217 replace a mortise deadbolt?
No. The DL3217 is a cylindrical (bored) deadlock, so it installs into a round cross-bore and edge bore. If the door is prepped with a rectangular mortise pocket, you need a mortise deadbolt such as the Dormakaba D900 small case mortise deadbolt, not this one.
17) I need a deadbolt on an exit door with no key outside - is the DL3217 the right part?
No. The Corbin Russwin DL3217 is keyed and operated by key from outside. For a non-keyed exit application, the Arrow E60 is a Grade 2 exit deadlock with a blank plate outside and a thumbturn inside, for doors 1-3/8 inch to 1-3/4 inch. That gives you inside-only control with no exterior cylinder at all.
18) Is there a lighter-duty classroom deadbolt if Grade 1 is more than the opening needs?
The Falcon D211 is a Grade 2 classroom-function deadbolt with single cylinder operation, rated medium duty, from the D200 Series. It covers the same classroom operation as the Corbin Russwin DL3217 - key outside, thumbturn inside that retracts but does not project the bolt - at a medium-duty rather than a Grade 1 commercial build. Use the D211 where the door sees lower traffic and the specification does not call out Grade 1.
19) Which deadbolt should I order if the opening needs a key on both sides instead of a thumbturn?
The Corbin Russwin DL3217 is a single cylinder unit with a thumbturn inside, so it cannot be keyed both sides. For double cylinder commercial applications, the Design Hardware D1 Series double cylinder deadbolt is Grade 1, extra heavy duty, and built for 1-3/4 inch doors, which matches the DL3217's door thickness. The Dexter DB1000 double cylinder is also Grade 1 and covers 1-3/8 inch to 1-7/8 inch. Check local egress code before putting a double cylinder on an occupied space.
20) Is the Arrow 460 strike a substitute for the strike that comes with the DL3217?
No. The Arrow 460 is a mortise lock strike for latchbolt by deadbolt functions with a straight lip, intended for mortise lock prep. The Corbin Russwin DL3217 is a cylindrical deadlock and ships with a 2-3/4 inch by 1-1/8 inch standard strike sized to its own bolt and frame prep. Ordering the 460 against a DL3217 opening will give you a strike that does not match the prep.
21) What is the closest commercial Grade 2 deadbolt if the DL3217's classroom restriction is not needed?
The Hager 3215 is a single cylinder Grade 2 commercial deadbolt with a 1 inch throw for doors 1-3/8 inch to 1-3/4 inch, which matches the 1 inch throw of the Corbin Russwin DL3217's solid steel bolt. The Deltana CL200LA is another Grade 2 single cylinder option built on a 2-3/4 inch backset, the same backset the DL3217 uses. Both operate cylinder by thumbturn with the inside turn projecting and retracting the bolt, rather than the classroom restriction.
22) We want keypad or credential access instead of a key - what replaces the DL3217?
The Corbin Russwin DL3217 is a mechanical keyed deadlock with a conventional 6-pin L4 cylinder. For credential-based access on a deadbolt, the Dormakaba Saffire LX-D is an RFID electronic deadbolt with BLE and electronic lock override, and the Dormakaba Nova-D is an RFID multihousing smart electronic deadbolt. The Codelocks CL2210 is an electronic mortise deadbolt, so note it needs mortise prep rather than the bored prep the DL3217 uses.
23) What finishes does the Corbin Russwin DL3217 come in?
Six: 605 bright brass, 606 satin brass, 612 satin bronze, 613 satin bronze oil-rubbed, 625 bright chrome and 626 satin chrome, plus BSP black suede powder coat. Every finish is offered with any of the three cylinder preps, so you can match existing hardware on an opening without giving up your keying choice.
How fast can I get the Corbin Russwin DL3217 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 DL3217 626 come with a warranty?
Absolutely. The Corbin Russwin DL3217 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 DL3217 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 DL3217 626 from ZenSupply?
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