Sargent 7G15-3 Communicating N...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$340.00
$210.04
Sargent Sargent 7 Line Series - Communicating (7G15-3) Non-Keyed Cylindrical Lock, Grade 2 SGT-7G15-3

Sargent 7G15-3 Communicating Non-Keyed Cylindrical Lock Grade 2 with 2-3/4" Backset

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Model: 28-7G15-3 LB 26D
From the 7 Line Series Collection
$340.00
$210.04
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$340.00
$210.04
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Sargent 7 Line Series Grade 2 Communicating Non-Keyed Cylindrical Lock with 2-3/4" Backset

Professional Grade 2 Cylindrical Lock for Commercial Applications

The Sargent 7 Line Series Communicating Non-Keyed Cylindrical Lock delivers professional-grade security and durability for commercial interior and exterior applications. This Grade 2 lock exceeds ANSI/BHMA A156.2 standards with a standard 2-3/4" backset and accommodates door thickness from 1-3/8" to 1-3/4". Features UL fire-rating up to 3 hours and ADA compliance for demanding commercial environments including public buildings, medical offices, hotels, and government facilities.

Professional Features & Benefits

  • Door Compatibility: Accommodates door thickness from 1-3/8" to 1-3/4" with standard 2-3/4" backset for versatile installation options.
  • Grade 2 Durability: Exceeds ANSI/BHMA A156.2 standards for cycling and durability in demanding commercial applications.
  • Rapid Installation: Internal through-bolts minimize additional door preparation and enable installation in one minute or less.
  • Heavy-Duty Construction: Internal through-bolt design supplies strength and stability without requiring additional door preparation for reliable long-term performance.
  • Fire Safety Compliance: UL-cUL fire-rated up to 3 hours and NFPA 80 compliant for critical fire safety applications.
  • Universal Key System Compatibility: Available with all SARGENT key systems including Degree, Signature, KESO, and XC for flexible security integration.
  • Anti-Microbial Option: Available with Microshield® antimicrobial coating for enhanced hygiene in healthcare and high-touch applications.
  • Manufacturer Warranty: 5-year limited warranty 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 1-3/4", standard 2-3/4" backset, and non-handed installation compatibility.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door surfaces for the modified 161 door prep.
  3. Prepare door by drilling required holes per manufacturer specifications, utilizing the internal through-bolt design to minimize additional preparation.
  4. Install all mounting hardware and secure the cylindrical lock to door using internal through-bolts per manufacturer torque specifications.
  5. Adjust latchbolt operation for proper 1/2" throw and smooth operation throughout the full range of motion.
  6. Test device operation to verify proper function and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

  • Public Buildings and Government Facilities
  • Medical Offices and Healthcare Institutions
  • Hotels and Hospitality Properties
  • Commercial Office Buildings
  • Educational Facilities
  • Retail Establishments
  • Multi-Tenant Residential Properties

Anti-Microbial Option

Available with Microshield® antimicrobial coating for enhanced hygiene protection in healthcare facilities, schools, and other high-touch commercial applications where infection control is a priority.

Why Choose Sargent Quality?

Sargent 7 Line Series cylindrical locks deliver professional-grade reliability with internal through-bolt construction that exceeds ANSI/BHMA A156.2 standards for cycling and durability. UL fire-rated up to 3 hours with comprehensive certifications including ADA compliance and NFPA 80 approval. 5-year limited warranty provides added confidence for demanding commercial applications where dependable performance is essential.

Product Specs

Series:
7 Line Series
Grade:
Grade 2
Keyed Function:
Non-Keyed
Subcategory:
Bored Locksets
Keyed:
No
Commercial/Residential:
Commercial
Lock Type:
Cylindrical
Lock Function:
Communicating
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Product Type:
Leversets
Duty Level:
Standard Duty
Handle Type:
Lever
Product Attribute:
Cylindrical Locks
Product Function:
Communicating
Door Hand Direction:
Non-Handed
Product Category:
Mechanical Locks
Collection:
7 Line Series
Department:
Door Hardware

Sargent 28-7G15-3 LB 26D – Frequently Asked Questions

1) What does the communicating function on the Sargent 7G15 lock actually do?
The 7G15 is a communicating function lock, non-keyed, used on a door between two adjoining rooms (hotel connecting rooms are the classic case). It has no key cylinder at all, so access is controlled from the levers rather than a keyway. If you need key control on the opening, this is the wrong function in the 7 Line and you want a keyed function instead.
2) Will the Sargent 7G15 fit a 1-3/8 inch door, or is it 1-3/4 only?
Both. The 7 Line cylindrical lock takes door thickness from 1-3/8 to 1-3/4 inches, so it drops onto older interior doors as well as standard commercial 1-3/4 inch doors. Prep is a modified 161 bore.
3) Can I use the Sargent 7 Line communicating lock on a fire rated door?
Yes. The 7 Line is UL-cUL fire rated up to 3 hours and NFPA 80 compliant, with a 1/2 inch latchbolt throw. It is also ADA compliant, which matters since it is a lever rather than a knob.
4) What should I use instead of the Sargent 7G15-3 on a door thicker than 1-3/4 inches?
The Sargent 7G15-3 covers doors 1-3/8 inch to 1-3/4 inch. For thicker leaves, the Hager 2510 Grade 2 passage lever covers 1-3/8 inch to 2 inch, the Corbin Russwin CL3110 Grade 1 vandal resistant passage lever covers 1-3/4 inch to 2 inch and is fire rated, and the Falcon K101 Grade 1 passage lock covers 1-3/8 inch to 2-1/4 inch. All three are passage function rather than communicating.
5) Do I have to specify handing when I order a Sargent 7 Line lever lock?
No. The 7 Line cylindrical lock is non-handed, so one part number covers left and right hand openings and you do not need to field-reverse anything.
6) Is a Grade 2 Sargent 7 Line lock enough for my building, or should I go Grade 1?
The 7 Line is Grade 2, standard duty, and rated to ANSI/BHMA A156.2. That suits interior commercial traffic, offices, hotel rooms, tenant spaces. For high abuse openings, entries, and stairwells, step up to a Grade 1 heavy duty cylindrical such as the Falcon K101 or the Corbin Russwin CL3100 Series, both Grade 1 and fire rated in our line.
7) Will this lock work with my existing Sargent master key system?
The 7G15 communicating function is non-keyed, so it does not take a cylinder and sits outside your keying schedule. Other 7 Line functions are available with all Sargent key systems, including Degree, Signature, KESO and XC, if you need this opening keyed into the building.
8) How much door prep does the Sargent 7 Line lock need on a retrofit?
Minimal beyond a standard modified 161 bore. The through-bolts are internal, so there is no extra drilling for mounting screws and no sex bolts showing on the rose. Sargent puts installation at about a minute once the door is prepped.
9) I need a plain passage lever, not a communicating lock. What should I look at instead?
Communicating is a specific two-room function. For a normal hall or closet door that never locks, a Grade 2 passage lever is the right call: the Falcon B101, the Accentra 5301LN Augusta, or the Hager 2510, which takes 1-3/8 to 2 inch doors. All are non-keyed passage function.
10) If the door only needs a latch with no locking, what is a simpler substitute for the Sargent 7G15-3?
The 7G15-3 is a non-keyed communicating lever lock in Grade 2. For a plain latching opening with no lock function at all, the Falcon B101 is a Grade 2 medium duty non-handed cylindrical passage lever, and the Arrow GL01 is a Grade 2 non-keyed passage lever for doors 1-3/4 inch to 2 inch thick. Both are passage only and will not hold the door against a latch retraction from either side the way a communicating lock does.
11) Which Grade 2 lever locks are closest in grade to the Sargent 7G15-3 if I need a keyed function on the same door instead?
The 7G15-3 is non-keyed. For a keyed Grade 2 cylindrical lever on comparable footing, the Hager 2580 is a Grade 2 storeroom lever for doors 1-3/8 inch to 2 inch, the Hager 2525 is a Grade 2 entrance lever over the same thickness range, and the Cal-Royal AG05 is a Grade 2 storeroom lever with a deadlocking latchbolt for 1-3/8 inch to 1-3/4 inch doors. Each changes the function, so match the door's security requirement rather than the grade alone.
12) Is a dummy lever trim an acceptable substitute for the Sargent 7G15-3?
No. The 7G15-3 is a cylindrical lock with a working latch in communicating function. Dummy trims such as the BEST 7KC 1DT Grade 2 single dummy, the BEST 9K 1DT Grade 1 heavy duty single dummy, and the Accentra 455LN Augusta Grade 1 single dummy are fixed pulls with no latch mechanism, intended for inactive leaves. They will not latch or operate a door.
13) Can I use a residential Grade 3 lever where the spec calls for the Sargent 7G15-3?
The 7G15-3 is a Grade 2 commercial cylindrical lever lock. Grade 3 levers such as the Kwikset 200BRNL Breton passage for 1-3/8 inch to 1-3/4 inch doors, the Cal-Royal AUS00 entrance/office lever for 1-3/8 inch to 1-3/4 inch doors, and the Callan Asheville passage lever sit at a lower ANSI/BHMA grade, so they will not satisfy a drawing written to Grade 2.
14) What is a Grade 2 alternative to the Sargent 7G15-3 for a patient room or institutional door needing a locked function on both sides?
The 7G15-3 is a non-keyed communicating lever. For institutional openings, the Arrow MK33-BD-CS is a Grade 2 heavy duty asylum function cylindrical lock with a conventional cylinder in the Schlage C keyway, and the Dexter C1000 asylum F87 is a Grade 1 version for doors 1-3/8 inch to 2 inch. Both are knob or lever locks with key control on both sides rather than a non-keyed communicating latch.
15) What lever styles and finishes does the Sargent 7G15 come in?
Three lever designs, B, L and P, across fourteen finishes: 03, 04, 09, 10, 10B, 10BE, 10BL, 14, 15, 20D, 26, 26D plus BSP black suede and WSP white suede powder coat. If you are matching existing openings in a building, 26D satin chrome and 10B oil rubbed bronze are the usual commercial standards.
16) Is there a version of this lock for a hospital or clinic door?
Yes. The 7 Line is offered with Microshield antimicrobial coating for healthcare, schools and other high touch openings. Specify it when you order.
17) Is a keypad leverset a substitute for the Sargent 7G15-3?
Not functionally. The 7G15-3 is a mechanical non-keyed cylindrical lever in communicating function. Keypad levers such as the Delaney LP250 Grade 2 electronic keypad leverlock and the Lockey 1150 mechanical keypad lever set for doors 1-1/8 inch to 2 inch add code-based access control, which is a different operation from a communicating lock and a different door prep.
How fast can I get the Sargent 28-7G15-3 LB 26D 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 Sargent 28-7G15-3 LB 26D come with a warranty?
Absolutely. The Sargent 28-7G15-3 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 28-7G15-3 LB 26D?
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
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