Sargent 10XG037 Classroom Sing...
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$953.00
$573.23
Sargent Sargent 10X Line Series - Classroom (10XG037) Single Cylinder Heavy Duty Cylindrical Lock, Grade 1 SGT-10XG037

Sargent 10XG037 Classroom Single Cylinder Heavy Duty Cylindrical Lock Grade 1 with Enhanced Security

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Model: 10XG37 LB 26D
From the 10X Line Series Collection
$953.00
$573.23
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$953.00
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Sargent 10X Line Grade 1 Classroom Cylindrical Lock with Enhanced Security

Professional Grade 1 Cylindrical Lock for High-Traffic Educational Environments

The Sargent 10X Line Series Classroom Cylindrical Lock delivers exceptional security and durability for educational facilities and high-traffic commercial applications. This Grade 1 lock exceeds ANSI/BHMA A156.2 performance standards by up to 20 times, withstanding more than 3,100 in-lb locked lever torque and 1,600 lbs offset lever pull. Engineered with a standard 2 3/4" backset and accommodating door thickness from 1 3/8" to 2", this heavy-duty lock provides reliable performance throughout its entire lifecycle with UL cycle testing completed at 20 million cycles.

Professional Features & Benefits

  • Exceptional Durability Testing: UL cycle testing completed at 20 million cycles (Verification ID: V584148) for long-term reliability in demanding applications.
  • Superior Security Performance: Prevents entry against more than 3,100 in-lb locked lever torque (2.6x ANSI/BHMA requirements) and withstands 1,600 lbs offset lever pull (8x requirements).
  • Enhanced Vandal Resistance: Prohibits entry after more than 100 vertical impacts (20x ANSI/BHMA requirements) providing maximum resistance to malicious attacks.
  • Flexible Door Compatibility: Accommodates door thickness from 1 3/8" to 2" with backset options from 2 3/8" to 5" for versatile installation requirements.
  • EcoFlex Technology: Available electromechanical functions create up to 92% energy savings for sustainable electrified door openings.
  • Universal Cylinder Support: Lockbody design supports all cylinder formats from fixed to interchangeable core and all Sargent Key Systems.
  • Windstorm Certification: Florida Building Code approved (FL# 2998) and UL-cUL fire-rated up to 3 hours for code compliance.
  • Manufacturer Warranty: 10-year limited warranty with 2-year coverage for electrical components for added confidence and protection.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness from 1 3/8" to 2", backset from 2 3/8" to 5", and non-handed installation compatibility.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door surfaces for proper alignment.
  3. Prepare door by drilling required holes and routing as specified in manufacturer instructions for the selected backset configuration.
  4. Install all mounting hardware and secure the cylindrical lock to door per manufacturer torque specifications ensuring proper cylinder format compatibility.
  5. Adjust operational components for proper alignment, latching with 1/2" latchbolt throw, and smooth operation throughout the full range of motion.
  6. Test device operation to verify proper function including classroom security features and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

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

Why Choose Sargent Quality?

Sargent 10X Line Series cylindrical locks deliver professional-grade reliability with heavy-duty construction rated for 20 million cycles and performance exceeding ANSI/BHMA standards by up to 20 times. The 10-year limited warranty with 2-year electrical component coverage demonstrates Sargent's commitment to quality. Engineered for demanding commercial applications where dependable performance and maximum security are essential, these locks provide the durability and reliability that facility managers trust.

Product Specs

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

Sargent 10XG37 LB 26D – Frequently Asked Questions

1) Will the Sargent 10XG037 classroom lock fit a 1-3/8 inch door, or does it need a full 1-3/4 inch commercial door?
Door thickness range on the 10X Line classroom lock runs 1-3/8 inches to 2 inches, so it covers older 1-3/8 inch wood doors, standard 1-3/4 inch commercial doors, and thicker 2 inch openings without a special order. That range is wider on the thick end than most Grade 2 cylindrical levers, which is useful on mineral-core or clad doors that come in over 1-3/4.
2) How does a classroom function lock actually work compared to a storeroom lock?
Classroom function means the outside lever is locked and unlocked by key only, and the inside lever always retracts the latch for free egress. The teacher locks the corridor side from the hallway with a key and it stays locked until keyed back. A storeroom function, by contrast, keeps the outside lever locked at all times and the key only retracts the latch momentarily, so it never stands unlocked. If you want the door to be able to stay unlocked during the day, classroom is the function you want; if it must never be left unsecured, order a storeroom instead, such as the Cal-Royal AG05 in Grade 2.
3) Can I get the Sargent 10XG037 to work with our existing small format interchangeable core keying?
Cylinder format is an order option on the 10XG037: a 6-pin standard cylinder, 60 for Sargent large format interchangeable core, or 70 for Sargent small format interchangeable core. The lockbody accepts all cylinder formats from fixed to interchangeable core and all Sargent Key Systems, so if the building is already on SFIC you order the 70 prep and drop your own cores in. Keyway choice runs the full Sargent range, 41 keyways from LA standard through the C, H, L and R families plus R, S and U.
4) Is the Sargent 10X Line classroom lock fire rated?
Yes, UL-cUL fire rated up to 3 hours, and it also carries Florida Building Code windstorm approval under FL# 2998. That covers the two approvals a code official normally asks for on a corridor classroom door: the fire door assembly listing and, in hurricane jurisdictions, the windborne debris approval.
5) Is a Grade 1 lock like the Sargent 10X worth it over a Grade 2 lever on classroom doors?
On a classroom corridor door, yes. Grade 1 is the highest ANSI/BHMA cylindrical grade and the 10X Line goes past the requirements: over 3,100 in-lb of locked lever torque (2.6 times the standard), 1,600 lbs of offset lever pull (8 times), and entry prohibited after more than 100 vertical impacts (20 times). UL cycle testing was completed at 20 million cycles. Those three numbers are exactly what fails first on a school door: someone hangs on the lever, someone kicks it, and it gets used a few hundred times a day. A Grade 2 classroom lever like the Cal-Royal AG03 costs less to buy and is a reasonable choice on a low-traffic interior door, but it is not tested to those levels.
6) What other Grade 1 classroom lever locks are there besides the Sargent 10X Line?
The Dexter C1000 Series classroom lock is the closest direct alternative: also Grade 1 cylindrical classroom function, clutching lever, keyed, with a door thickness range of 1-3/8 to 1-3/4 inches. The practical difference is the 10X Line covers doors up to 2 inches thick and offers backsets out to 5 inches, so on a thick door or a wide stile the Dexter will not reach. Dexter also builds a C1000 Classroom Security version, which adds an inside keyed cylinder so a teacher can lock the corridor side from inside the room without stepping into the hallway. If lockdown from inside the classroom is the requirement, that is the one to look at rather than a standard classroom function.
7) Can the Sargent 10X Line be keyed alike with the rest of our building?
Keying is specified when you order: standard keying, KD keyed different, KA keyed alike, or MK master keyed. If the building is already on a Sargent master key system, order MK and give your keyway, since the 10X lockbody accepts all Sargent Key Systems. For a group of classroom doors that all take one teacher key, KA is what you want.
8) Is a single cylinder classroom lock enough, or do I need something a teacher can lock from inside the room?
The 10XG037 is single cylinder, keyed from the corridor side only. In a lockdown the teacher has to open the door and key it from the hallway. If your district requires locking from inside the classroom without opening the door, a standard classroom function will not satisfy that; look at a classroom security function with an inside cylinder, such as the Dexter C1000 Classroom Security, which fits doors 1-3/8 to 1-3/4 inches thick. Where the requirement is simply a keyed corridor door with free egress, single cylinder is correct and simpler to key.
9) What is the closest Grade 1 classroom cylindrical lever lock to the Sargent 10XG037 from another manufacturer?
The Dexter C1000 Series classroom cylindrical lever lock (DEX-C1000-CLRM) is the nearest equivalent: Grade 1, classroom function, keyed, with a clutching lever, and a door thickness range of 1-3/8 inch to 1-3/4 inch. The Sargent 10XG037 is also a Grade 1 classroom cylindrical lever, non-handed, and covers door thickness from 1-3/8 inch to 2 inch with backsets from 2-3/8 inch to 5 inch. If the door is thicker than 1-3/4 inch, the Sargent covers it and the Dexter's published range does not.
10) I need a lock that lets a teacher lock the classroom door from inside during a lockdown - is the Sargent 10XG037 the right function?
No. The Sargent 10XG037 is classroom function, which is keyed from the outside only - the lever outside is locked and unlocked with a key, and there is no inside keying. For lockdown from inside the room, the Dexter C1000 Series classroom security lock (DEX-C1000-CSEC) is the function to specify: it is Grade 1 classroom security, keyed and clutching, in a 1-3/8 inch to 1-3/4 inch door thickness range. Classroom security carries cylinders on both sides so the room can be secured without stepping into the corridor.
11) What should I use instead of a classroom lock on a door that has to stay locked at all times and always let people out?
That is storeroom function, not classroom. The Cal-Royal AG05 (CAL-AG05-26D) is a Grade 2 storeroom lever lockset with a deadlocking latchbolt, door thickness 1-3/8 inch to 1-3/4 inch, and the Hager 2580 with Withnell lever (HAG-2580WTN26D) is a Grade 2 storeroom cylindrical lock for 1-3/8 inch to 2 inch doors. The Sargent 10XG037 is classroom function, where the outside lever is unlocked and relocked by key and can be left free-turning for the duration of a class.
12) Can I put the Sargent 10XG037 on a patient room or holding room door that needs a key on both sides?
No - the 10XG037 is single cylinder classroom function, keyed from one side. A door that must be keyed on both sides with no free egress lever is asylum function: the Dexter C1000 Series asylum F87 (DEX-C1000-ASYL) is Grade 1 asylum, institution and utility function for 1-3/8 inch to 2 inch doors, and the Arrow MK33-BD-CS (AR-MK33-BD-CS) is a heavy duty asylum lock with a ball knob and a conventional cylinder in Schlage C keyway. Confirm the egress requirement for the room type before specifying asylum function.
13) Our building keys on Schlage C - can I still use the Sargent 10XG037 or should I switch brands?
The Sargent 10XG037 keys on Sargent keyways, offered in LA standard plus the CA through CR, HA through HK, LB through LL, R, RA through RL, S and U families, with 6-pin standard, Sargent large format interchangeable core and Sargent small format interchangeable core cylinder formats and keyed different, keyed alike or master keyed. Locks that come on Schlage C in this class include the Cal-Royal AG03 classroom lever, Grade 2 with a 6-pin Schlage C keyway keyed different and 2-3/4 inch backset, the Cal-Royal AG00 entrance lever, Grade 2 Schlage C 6-pin keyed different with a 2-3/8 inch backset, and the Arrow MK33-BD-CS with a conventional Schlage C cylinder. Accentra also lists a 107S Schlage cylinder adapter kit for Yale hardware.
14) Do I have to specify handing when ordering a Sargent 10X Line classroom lock?
No handing to specify. The 10X Line cylindrical lock is non-handed, so one part number works on a left or right hand door, inswing or outswing. That matters for a facility buying spares: you stock one lock rather than a left and a right.
15) I need to match the lever style across a whole building. What lever and rose options does the Sargent 10X Line come in?
Three lever designs, B, L and P, and two rose shapes, G and L. Fourteen finishes are available, from 26D satin chrome and 15 satin nickel through the brass and bronze range (03, 04, 09, 10, 10B, 10BE, 10BL, 20D), bright nickel 14, bright chrome 26, and black or white suede powder coat. If you are standardizing a facility, pick the lever, rose and finish once and the same combination carries across every function in the 10X Line, so the classroom, storeroom and passage doors all read the same.
16) Should I use a cylindrical lock or a mortise lock on a classroom door?
A cylindrical lock like the 10XG037 goes into a bored door prep, two round holes and an edge bore, which is faster to install and far easier to retrofit into an existing door. A mortise lock needs a pocket routed into the door edge and is normally chosen where you want a deadbolt and latch in one body or higher trim loading. On a classroom corridor door already prepped for a bored lock, the cylindrical is the straight answer, and at Grade 1 with 20 million cycle testing it is not giving anything up on durability.
17) Does the Sargent 10X Line come in an electrified version for access control?
Yes, the 10X Line includes electromechanical functions using Sargent's EcoFlex technology, rated for up to 92% energy savings on electrified openings, and there is a dedicated installation instruction set for the 10X Line electrified bored lock. If you are tying classroom doors into a card reader or a lockdown system, that is the direction to go rather than the mechanical classroom function. A comparable electrified cylindrical option from another brand is the Corbin Russwin CL33903, a Grade 1 fail safe lever running 12V AC/DC on 1-3/4 to 2 inch doors.
18) We are standardizing a school corridor on Grade 1 cylindrical levers - what non-keyed lock matches the Sargent 10XG037 on the doors that do not need keying?
For the passage openings, the Grade 1 non-keyed cylindrical levers in the set are the Falcon K101 (FAL-K101-NON-KEYED), heavy duty, non-handed, fire rated, covering 1-3/8 inch to 2-1/4 inch doors; the Falcon T101 (FAL-T101-NONKEYED), Grade 1 heavy duty passage with pressure release technology; the Corbin Russwin CL3110 (COR-CL3110-NON-KEYED), Grade 1 vandal resistant, fire rated, for 1-3/4 inch to 2 inch doors; and the Design Hardware X75 (DH-X-75-F), Grade 1 passage with a flat lever for 1-3/4 inch doors. The Sargent 10XG037 is the keyed classroom half of that mix - Grade 1 heavy duty, single cylinder, non-handed.
19) Is a Baldwin Estate 5103 or an Emtek Cortina lever a substitute for a Sargent 10X classroom lock?
They are not substitutes. The Baldwin Estate 5103 with 5048 rose comes in passage (BAL-5103-PASS), privacy (BAL-5103-PRIV) and handed half dummy (BAL-5103-LDM left hand, BAL-5103-RDM right hand) functions, and the Emtek Classic Brass Cortina lever ships as a dummy pair - none of them are keyed classroom locks. The Sargent 10XG037 is a keyed, single cylinder, non-handed Grade 1 classroom lock. Use the decorative levers on interior doors that need no key, and the 10XG037 on the openings that are on the master key system.
20) We want keypad access on a classroom door instead of keys - what replaces a Sargent 10X classroom lever?
For code entry in place of a key, the Delaney LP250 electronic keypad leverlock (DLY-LP250) is a Grade 2 keypad leverset, the Lockey 1150 is a heavy duty mechanical keypad lever set with double combination in passage function for 1-1/8 inch to 2 inch doors, and Emtek offers a Classic keypad leverset. The Sargent 10XG037 is a mechanical Grade 1 classroom lock whose lockbody accepts fixed, large format interchangeable core and small format interchangeable core cylinders across all Sargent key systems, so it stays on the building master key rather than a code.
21) Our access control drawing calls for an electrified lever at the classroom door - what takes the place of a mechanical Sargent 10X?
For an electrified cylindrical lever, the Corbin Russwin CL33903 is a Grade 1 fail safe lever at 12VAC/DC for 1-3/4 inch to 2 inch doors, offered with an NZ lever and D rose (COR-CL33903) and in a keyed 12VAC/DC configuration (COR-CL33903-KEYED-12AD). The Sargent 10X Line lockbody also has available electromechanical functions using EcoFlex technology for electrified openings. Match the fail safe or fail secure requirement on the drawing before ordering either.
22) What is the difference between a Sargent 10XG037 classroom lock and a Hager 2525 or Dexter entry office lever?
Entry office function lets the inside lever button lock and unlock the outside lever without a key, so anyone in the room can secure it. The Hager 2525 (HAG-2525) is a Grade 2 commercial cylindrical entry lock with a lever handle for 1-3/8 inch to 2 inch doors, the Dexter C1000 entry office (DEX-C1000-ENTR) is Grade 1 entry office, clutching and keyed, for 1-3/8 inch to 1-3/4 inch doors, and the Falcon B511CP6D is a Grade 2 medium duty entry office lever. Classroom function on the Sargent 10XG037 puts that control on the key only, which is why schools specify it for corridor doors.
23) Is a knob lock an acceptable alternative to the Sargent 10XG037 lever on a school door?
Knob designs in the same cylindrical family include the Arrow HK11-BB turn pushbutton entrance lock with a ball knob and conventional cylinder, the Arrow MK02-TA privacy lock with a Tudor knob for 1-3/4 inch to 2 inch doors, and the Arrow MK33-BD-CS asylum lock with a ball knob. The Sargent 10XG037 is a lever handle design, non-handed. On openings governed by ADA accessible reach and grasp requirements, the lever operates without tight grasping or wrist twisting and the knob does not, so confirm which the opening is required to have before substituting.
24) The classroom door is a residential grade opening in student housing - do I need the Sargent 10X or something lighter?
For a light interior residential opening, the Kwikset 200BRNL Breton passage lever (KWI-200BRNLRDT) is Grade 3 passage for 1-3/8 inch to 1-3/4 inch doors and the Kwikset 300BRNL Breton privacy lever (KWI-300BRNLRDT) is Grade 3 privacy in the same thickness range; the Cal-Royal AUS00 is a Grade 3 entrance office lever with a solid brass forged body for 1-3/8 inch to 1-3/4 inch doors. The Sargent 10XG037 is Grade 1 commercial heavy duty, tested to 20 million cycles and holding against more than 3,100 in-lb of locked lever torque, which is what corridor and high-traffic openings are specified to.
25) Where can I get the door prep template and parts breakdown for a Sargent 10X Line lockset?
Sargent publishes installation instructions for the 10X Line cylindrical lockset, a separate instruction set for the electrified bored version, and a full 10X Line parts manual covering component-level replacements. The parts manual is the one to pull when you are rebuilding an existing lock rather than hanging a new one, since it identifies the individual chassis and trim parts by number.
26) Will an Accentra or BEST dummy trim work on the inactive leaf next to a Sargent 10X classroom lock?
A dummy trim is the correct part for an inactive leaf, but it does not latch or key. The BEST 9K Series 1DT single dummy trim (BES-9K-1DT-NONKEYED) is a Grade 1 heavy duty non-keyed dummy lever, the BEST 7KC Series 1DT is a Grade 2 medium duty dummy, and the Accentra 455LN Augusta (YAL-AU-455LN) is a Grade 1 single dummy in the 5400 Series. Pair one of those with the keyed Grade 1 classroom function on the active leaf; the Sargent 10XG037 lever comes in B, L and P lever styles on G or L roses, so match the trim shape to what is going on the active door.
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