Sargent 10XG16 Classroom Secur...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,095.00
$672.97
Sargent 10XG16 Classroom Security Double Cylinder Heavy Duty Cylindrical Lock – L Rose, B Lever, Polished Nickel finish, front three-quarter view with latchbolt extended

Sargent 10XG16 Classroom Security Double Cylinder Heavy Duty Cylindrical Lock Grade 1

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Model: 10XG16 LB 26D
From the 10X Line Series Collection
$1,095.00
$672.97
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,095.00
$672.97
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Sargent 10XG16 Classroom Security Double Cylinder Cylindrical Lock — Grade 1

The Sargent 10X Line 10XG16 is a heavy-duty Grade 1 cylindrical lock engineered for classroom security in K–12, higher education, healthcare, and institutional facilities. The double-cylinder function (ANSI F88) deadbolts the latch from the outside via key while keeping the inside lever always operative — meeting active-shooter lockdown protocols without requiring a separate deadbolt. Performance exceeds ANSI/BHMA Grade 1 requirements by up to 20×, backed by a 20-million-cycle UL verification and a 10-year limited warranty.

Key Features

  • ANSI Function F88 (Double Cylinder Classroom): Key-in-outside-lever deadbolts the latch; inside lever always free — no inside key required to exit.
  • Grade 1 Performance, 20× Over Standard: 3,100+ in-lb locked lever torque (2.6× ANSI requirement); 1,600 lb offset lever pull (8× ANSI requirement).
  • 20-Million-Cycle UL Rating: UL Cycle Above and Beyond verified (Verification ID: V584148) — the highest published cycle rating in the cylindrical lock category.
  • Vandal Resistance: Withstands 100+ vertical impacts (20× ANSI requirement); push/turn button design prevents damage from door stops.
  • Latch Performance Under Load: Retracts latch with 100 lb preload (2× ANSI requirement); operates in warped doors or doors with latch bind.
  • UL/cUL Fire-Rated: Listed for up to 3-hour fire-rated assemblies.
  • ADA Compliant: Lever trim meets ADA and ANSI A117.1 accessibility requirements.
  • Florida Building Code Approved & Windstorm Certified: Suitable for Florida high-velocity hurricane zone installations.
  • Non-Handed: Installs on any door hand without field modification.
  • EcoFlex Electrified Option: Electromechanical variants use EcoFlex technology for up to 92% energy savings versus conventional electrified locks.
  • Warranty: 10-year limited mechanical; 2-year electrical components.

Technical Specifications

  • ANSI/BHMA Grade: Grade 1
  • Lock Function: Classroom Security / Double Cylinder (ANSI F88)
  • Backset (Standard): 2-3/4"
  • Backset Range: 2-3/8" to 5"
  • Door Thickness: 1-3/8" to 2"
  • Latchbolt Throw: 1/2"
  • Locked Lever Torque: 3,100+ in-lb (2.6× ANSI/BHMA requirement)
  • Offset Lever Pull: 1,600 lb (8× ANSI/BHMA requirement)
  • Latch Retraction Preload: 100 lb (2× ANSI/BHMA requirement)
  • Cycle Rating: 20 million cycles (UL Verification ID: V584148)
  • Fire Rating: UL/cUL listed, up to 3 hours
  • Handing: Non-handed
  • Lever Material: Solid cast zinc
  • Rose Material: Wrought brass or bronze
  • Lever Options: B Lever, L Lever, P Lever
  • Rose Options: G Rose, L Rose
  • Finishes Available: 03 Bright Brass, 04 Satin Brass, 09 Bright Bronze, 10 Satin Bronze, 10B Dark Oxidized Satin Bronze Oil Rubbed, 10BE Dark Oxidized Satin Bronze, 10BL Dark Oxidized Satin Bronze Clear Coated, 14 Bright Nickel, 15 Satin Nickel, 20D Dark Statuary Bronze, 26 Bright Chrome, 26D Satin Chrome, BSP Black Suede Powder Coat, WSP White Suede Powder Coat
  • Certifications: ANSI/BHMA Grade 1, UL/cUL Fire-Rated (3 hr), ADA, Florida Building Code, Windstorm Certified

Typical Applications

  • K–12 and higher education classroom lockdown doors
  • Healthcare patient room and corridor doors
  • Government and municipal office doors
  • Multi-family and institutional common-area doors
  • High-traffic commercial and retail security zones

Installation Resources

Full installation instructions, parts manual, and the Sargent full-line catalog are available as downloadable PDFs on this page. Verify door prep (hole size, backset, door thickness) against the installation template before ordering. This lock is non-handed and requires no field modification for door hand.

Product Specs

Series:
10X Line Series
Grade:
Grade 1
Keyed Function:
Double Cylinder
Subcategory:
Bored Locksets
Keyed:
Yes
Commercial/Residential:
Commercial
Lock Type:
Cylindrical
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Lock Function:
Classroom Security
Product Type:
Leversets
Duty Level:
Heavy Duty
Handle Type:
Lever
Product Attribute:
Cylindrical Locks
Product Function:
Classroom Security
Door Hand Direction:
Non-Handed
Product Category:
Mechanical Locks
Collection:
10X Line Series
Department:
Door Hardware

Sargent 10XG16 LB 26D – Frequently Asked Questions

1) Will the Sargent 10XG16 classroom security lock work for lockdown from inside the classroom without a separate deadbolt?
That's exactly what the F88 double cylinder function does. A key in the outside lever deadbolts the latch, and the inside lever stays operative at all times, so nobody needs an inside key to get out. Teachers lock the door from inside the room without cracking it open to reach an outside cylinder, and no separate deadbolt is needed on the opening.
2) Do I have to order the Sargent 10XG16 handed, left or right?
No handing to specify. The 10XG16 is non-handed and installs on any door swing with no field modification, so one part number covers both hands across a building. That's useful when you're stocking spares for a district or campus, since a single lock fits whichever opening fails.
3) Can the Sargent 10XG16 be keyed into an existing Sargent masterkey system?
Yes. Cylinder choices are a 6-pin standard conventional cylinder, 60 for Sargent large format interchangeable core (FSIC), or 70 for small format interchangeable core (SFIC), so it drops into whichever core platform the facility already runs. Keying can be specified keyed different, keyed alike, or master keyed, and 41 keyways are available: LA standard plus CA, CB, CC, CE, CF, CG, CJ, CK, CL, CR, HA, HB, HC, HE, HF, HG, HH, HJ, HK, LB, LC, LE, LF, LG, LJ, LK, LL, R, RA, RB, RC, RE, RF, RG, RJ, RK, RL, S and U. Give the existing keyway and master system when ordering.
4) Can the Sargent 10XG16 go on a fire-rated classroom door?
It's UL and cUL listed for fire-rated assemblies up to 3 hours. The latch deadbolts by key from outside while the inside lever always releases, so egress is never keyed on the room side. It also carries Florida Building Code approval and windstorm certification for high-velocity hurricane zone openings, and the lever trim meets ADA and ANSI A117.1.
5) What is the difference between a classroom lock and a classroom security lock when specifying a school door?
A classroom lock is keyed from the outside only, so a teacher has to step into the corridor to lock the door. A classroom security lock is keyed on both sides of the door, letting the teacher lock the outside lever from inside the room while the inside lever stays free to exit. The Sargent 10XG16 is the classroom security version, ANSI function F88, double cylinder. The Dexter C1000 Series is offered both ways: a Grade 1 classroom clutching lever lock and a separate Grade 1 classroom security clutching lever lock. If the lockdown protocol requires locking from inside the room, the classroom version is not a substitute for the security version regardless of grade.
6) What is the closest equivalent to the Sargent 10XG16 classroom security lock from another manufacturer?
The Dexter C1000 Series classroom security cylindrical lever lock is the closest functional match. Both are Grade 1 keyed cylindrical lever locks built for the classroom security function, where the outside lever is locked by key and the inside lever stays free to exit. The Dexter C1000 classroom security version uses a clutching lever and covers doors 1-3/8 inch to 1-3/4 inch thick, while the Sargent 10XG16 covers 1-3/8 inch to 2 inch and is non-handed with B, L, or P lever profiles on G or L roses. Both suit a K-12 lockdown door; the Sargent adds the wider door thickness range and a 2-3/8 inch through 5 inch backset selection.
7) Is an asylum or institution function lock the same thing as classroom security?
No. Both are keyed on both sides, but they behave differently. The Dexter C1000 Series asylum lock, ANSI function F87, is Grade 1 and keys both levers, so a key is needed to operate either side. The Sargent 10XG16 is ANSI function F88: the outside key deadbolts the latch and locks the outside lever, but the inside lever is always operative and no inside key is needed to exit. On a classroom or any door on an egress path, that free-egress inside lever is the deciding difference. The Arrow MK33-BD-CS is another asylum function option, a heavy duty knob lock with a conventional cylinder in the Schlage C keyway.
8) Is there another classroom security lever lock if the Sargent 10XG16 is more than the job needs?
The Dexter C1000 Series classroom security lever is the closer alternative we hold: Grade 1, clutching, keyed, for doors 1-3/8 to 1-3/4 inches thick. Where the 10XG16 differs is door range, 1-3/8 to 2 inches, and backsets out to 5 inches, so on a thicker door or an odd backset the Sargent is the one that fits. The Sargent also carries the 20 million cycle UL verification and interchangeable core options, which matter on a high-traffic campus standardizing on one core platform.
9) Will the Sargent 10XG16 hold up in a high school corridor where levers get abused?
The numbers behind it are the reason it gets specified in schools: 3,100-plus in-lb locked lever torque, 2.6 times the ANSI/BHMA requirement, and 1,600 lb offset lever pull, 8 times the requirement. It withstands 100-plus vertical impacts, 20 times the requirement, and the push/turn button design avoids damage from door stops. Cycle life is UL verified at 20 million. Levers are solid cast zinc on wrought brass or bronze roses.
10) What do I have to specify when ordering a Sargent 10XG16?
Five required choices plus trim. Backset (2-3/8, 2-3/4, 3-3/4 or 5 inches), strike (808 ANSI 4-7/8, 800 T strike, or WBS wrought box), cylinder (6-pin standard, 60 FSIC or 70 SFIC), keying (standard, KD, KA or MK), and keyway (LA standard or one of 40 others). Then lever (B, L or P), rose (G or L) and finish. No handing to call out. Verify hole size, backset and door thickness against the 10X Line installation template before you order.
11) I only need a lock that keeps the door latched with no key, not classroom security. What Grade 1 cylindrical lever should I order?
Passage function is the right call for a door that just needs to latch, and the 10XG16's double cylinder keyed function would be wasted on it. Grade 1 heavy duty passage levers ZenSupply carries include the Falcon K101, fire rated, for doors 1-3/8 to 2-1/4 inches, the Falcon T101 T Series with pressure release, the Corbin Russwin CL3110 vandal resistant, fire rated, 1-3/4 to 2 inch doors, and the Design Hardware X75 for 1-3/4 inch doors.
12) Is a Grade 2 classroom lever a fair substitute for the Sargent 10XG16 on a school door?
Not the same part. The Cal-Royal AG03 classroom lever we carry is Grade 2 with a 6-pin Schlage C keyway KD and a 2-3/4 inch backset, and it is a standard classroom function, not double cylinder, so it cannot be locked by key from inside the room. On a lockdown-protocol door that difference is the whole point. Grade 2 is also a lower ANSI/BHMA cycle and strength tier than Grade 1, which is what the 10XG16 holds.
13) We need an electrified cylindrical lever for access control on some of the same doors - what pairs with a Sargent 10X classroom security opening?
The Corbin Russwin CL33903 is a Grade 1 fail safe electrified cylindrical lever lock in 12VAC/DC, offered with an NZ lever on a D rose, for doors 1-3/4 inch to 2 inch thick. The Sargent 10X Line also has electromechanical variants using EcoFlex technology. Keep the electrified doors and the mechanical classroom security doors on the same keyway if they share a key system, since the 10XG16 is available in LA standard plus the CA, CB, HA, RA and other Sargent keyway families, and in 6-pin conventional, 60 large format interchangeable core, or 70 small format interchangeable core.
14) We need classroom locks but the budget is Grade 2 - what are the options?
The Cal-Royal AG03 is a Grade 2 classroom lever with a 6-pin Schlage C keyway, keyed different, on a 2-3/4 inch backset. It is a classroom function, meaning keyed from the outside, so it does not give the inside-key lockdown that the Sargent 10XG16 classroom security function provides. The Hager 2580 is a Grade 2 storeroom lever, which keeps the outside lever locked at all times and is a common choice where a room is secured by default rather than locked on demand. For a door that must be locked from inside the room during a lockdown, the 10XG16 double cylinder function is the one that does it.
15) What should I use on doors in the same corridor that do not need to lock, so the lever style matches?
Pair the keyed classroom security openings with a Grade 1 non-keyed lever on the doors that stay free. The Falcon K101 is a Grade 1 heavy duty passage cylindrical lock with non-handed levers, fire rated, for doors 1-3/8 inch to 2-1/4 inch thick. The Corbin Russwin CL3110 is a Grade 1 vandal resistant passage cylindrical lever lock, fire rated, for 1-3/4 inch to 2 inch doors. Either keeps the corridor at Grade 1 alongside the Sargent 10XG16, which is Grade 1 heavy duty and UL/cUL fire rated to 3 hours. Lever profile and finish will not match across brands, so if visual consistency matters, keep the whole corridor in one line.
16) Can I use an entry or office function lever instead of a classroom security lock?
Only where the door does not need key control from inside. An entry/office lever such as the Dexter C1000 Grade 1 entry/office clutching lever, the Falcon B511CP6D Grade 2 entry/office lever, or the Hager 2525 Grade 2 commercial entry lock is secured by a pushbutton or turn on the inside, which anyone in the room can set or release. The Sargent 10XG16 locks the outside lever by key only, so the lock state cannot be changed by an occupant without a key and cannot be left unlocked by accident. For a lockdown door that is the point of the specification.
17) Will a residential-grade lever hold up on a school or healthcare corridor door?
Specify to the grade the opening sees. Options such as the Kwikset 200BRNL Breton passage lever and the Cal-Royal AUS00 entrance/office lever are Grade 3, and the Callan Artino and Bennett entrance leversets are Grade 3, which is the residential tier. The Sargent 10XG16 is ANSI/BHMA Grade 1 heavy duty, UL verified to 20 million cycles, rated 3,100+ in-lb locked lever torque and 1,600 lb offset lever pull, and it withstands 100+ vertical impacts. On a K-12, healthcare, or high-traffic institutional corridor that is the tier the traffic and the abuse call for.
18) Can I put a knob lock on a classroom door instead of a lever?
Not where accessibility governs. The Sargent 10XG16 lever trim meets ADA and ANSI A117.1 accessibility requirements, and is offered in B, L, and P lever profiles. Knob products such as the Arrow MK02-TA privacy Tudor knob and the Arrow HK11-BB turn-pushbutton entrance ball knob are knob trim, which does not satisfy the lever-operable requirement on an accessible route. Reserve knobs for openings exempt from that requirement.
19) Can I use the Sargent 10XG16 on a patient room or healthcare corridor door?
It's used on healthcare patient room and corridor doors, along with K-12 and higher education lockdown openings, government offices, multi-family common areas and high-traffic retail security zones. For a healthcare application where the room needs to be secured against occupant self-harm rather than intrusion, asylum function is the different animal: that's the Dexter C1000 Series asylum lock (F87), Grade 1, 1-3/8 to 2 inch doors, not a classroom security function.
20) Are replacement parts and templates available for the Sargent 10X Line cylindrical lockset?
Yes. The 10X Line parts manual, the cylindrical lockset installation instructions, the electrified bored lock instructions and the Sargent full line catalog are all published as PDFs. Locksmiths maintaining a campus standard use the parts manual to order individual levers, roses and latch units rather than whole locksets.
21) What do I order for the inactive leaf or a pull-side-only door next to a classroom security opening?
A dummy trim, not a keyed lock. The BEST 9K Series 1DT single dummy trim is a Grade 1 heavy duty non-keyed cylindrical lever, and the BEST 7KC Series 1DT single dummy trim is the Grade 2 medium duty equivalent. The Accentra 455LN Augusta is a Grade 1 single dummy cylindrical lever in the 5400 Series. Any of these gives a fixed lever with no latch, where the Sargent 10XG16 is a keyed, latching classroom security lock. Match dummy trim to the grade of the working locks in the same opening.
22) Would a keypad lever work in place of a keyed classroom security lock?
A keypad lever changes how the door is credentialed, not what the lock does. The Delaney LP250 is a Grade 2 electronic keypad leverlock, and the Lockey 1150 is a heavy duty mechanical keypad lever set with double combination in a passage function, for doors 1-1/8 inch to 2 inch thick. Neither gives the ANSI F88 behavior the Sargent 10XG16 provides, where a key at the outside lever deadbolts the latch while the inside lever stays free. Where a district keys its buildings on one master system, the 10XG16 takes Sargent conventional, large format interchangeable, or small format interchangeable cylinders and keyed alike or master keyed setups, which a standalone keypad does not participate in.
How fast can I get the Sargent 10XG16 LB 26D delivered?
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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 Sargent 10XG16 LB 26D come with a warranty?
Absolutely. The Sargent 10XG16 LB 26D 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 Sargent 10XG16 LB 26D?
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