Sargent 8XG04 Grade 1 Storeroo...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,015.00
$588.43
SGT-8XG04

Sargent 8XG04 Grade 1 Storeroom/Closet Single Cylinder Knob Lock with 2-3/4" Backset

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Model: 28LC-8XG04 LB 32D
$1,015.00
$588.43
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,015.00
$588.43
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Sargent 8X Line Series Grade 1 Storeroom/Closet Single Cylinder Knob Lock with 2-3/4" Backset

Professional Grade 1 Commercial Knob Lock Solution

The Sargent 8X Line Series Grade 1 knob lock delivers professional-grade security for storeroom and closet applications with ANSI/BHMA Grade 1 certification. This single cylinder knob lock features a standard 2-3/4" backset depth and accommodates door thickness from 1-3/8" to 1-3/4". The versatile design accepts SARGENT standard, Signature and Degree cylinders for flexible master key system integration with UL-cUL fire-rated construction up to 3 hours.

Professional Features & Benefits

  • Door Compatibility: Designed for 1-3/8" to 1-3/4" door thickness with 2-3/8" to 2-3/4" backset options for versatile installation requirements.
  • Grade 1 Durability: ANSI/BHMA A156.2 Series 4000 Grade 1 certification ensures heavy-duty performance for demanding commercial applications.
  • Fire-Rated Construction: UL-cUL listed for fire-rated applications up to 3 hours providing code compliance for critical egress paths.
  • Cylinder Compatibility: Accepts SARGENT standard, Signature and Degree cylinders enabling integration with existing or new master key systems.
  • Reversible Latch Design: Self-adjusting latches accommodate door bevel automatically for simplified installation and consistent operation.
  • Universal Installation: Non-handed design eliminates handing requirements for streamlined inventory and installation processes.
  • Interior/Exterior Application: Suitable for both interior and exterior door installations with weather-resistant construction.
  • Manufacturer Warranty: 3-year limited warranty coverage 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 (1-3/8" to 1-3/4"), backset depth (2-3/8" to 2-3/4"), and handing as applicable to this product.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces.
  3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.
  4. Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications.
  5. Adjust operational components for proper alignment, latching, 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

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

Why Choose Sargent Quality?

Sargent 8X Line Series knob locks deliver professional-grade reliability with Grade 1 construction rated for heavy-duty commercial applications. UL-cUL fire-rated up to 3 hours with 3-year limited warranty coverage. Engineered for demanding commercial applications where dependable performance and code compliance are essential.

Product Specs

Series:
8X Line Series
Grade:
Grade 1
Keyed Function:
Single Cylinder
Subcategory:
Bored Locksets
Keyed:
Yes
Commercial/Residential:
Commercial
Handle Type:
Knob
Lock Function:
Storeroom/Closet
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Product Type:
Knobsets
Duty Level:
Heavy Duty
Product Attribute:
Cylindrical Locks
Product Function:
Storeroom
Door Hand Direction:
Non-Handed
Product Category:
Mechanical Locks
Department:
Door Hardware

Sargent 28LC-8XG04 LB 32D – Frequently Asked Questions

1) What does the storeroom function on the Sargent 8XG04 knob lock actually do?
Storeroom function means the outside knob is always locked. Entry from outside is by key only, and the inside knob always retracts the latch for free egress. There is no button or thumbturn to leave the outside knob unlocked, which is why it suits stock rooms, closets, mechanical rooms and any door that must never be left open by accident. It is a keyed single cylinder lock, keyed on the outside only.
2) Will the Sargent 8X knob lock fit a 1-3/4 inch commercial door?
Yes. The 8X Line knobset covers door thickness from 1-3/8 to 1-3/4 inches, so standard 1-3/4 inch commercial doors and older 1-3/8 inch interior doors are both in range. Backset is selected at order time, 2-3/8 or 2-3/4 inches, so it drops into either of the two common cylindrical preps.
3) Can this Sargent knob lock go on a fire-rated door?
Yes. The 8X Line construction is UL-cUL listed for fire-rated openings up to 3 hours, and the storeroom function keeps the door latched and locked at all times while allowing free egress from inside, which is what a rated opening needs.
4) What is the difference between the Standard cylinder and the LC (less cylinder) option on the Sargent 8X knob lock?
Standard ships with a 6-pin Sargent cylinder installed. LC ships less cylinder, so you supply and install your own, which is how locksmiths and facilities handle an existing keyway or a core program they already run. If you take LC, the keying and keyway selections are set to None. The lock accepts Sargent standard, Signature and Degree cylinders.
5) Can I get these Sargent storeroom knob locks keyed alike or on our building master key system?
Yes. Keying is a required selection: Standard Keying, KD keyed different, KA keyed alike, or MK master keying. Keyway choices run from LA (standard) through the C, H, L and R families plus R, S and U, 40 keyways in all, so an existing Sargent system can be matched. If you are ordering LC (less cylinder), keying and keyway are set to None and you key it yourself.
6) Which strike should I order with the Sargent 8X knob lock for my frame?
Strike is a required pick. For a standard ANSI 4-7/8 inch frame prep, choose the ANSI strike in 1-1/8, 1-1/4 or 1-3/8 inch lip length, sizing the lip so it clears the frame face and stop without overhanging. For older frames prepped for a T strike, take the T Strike with 1-1/4 inch lip, and for wood jambs cut for a full lip, take the Full Lip Strike. Getting this wrong is the usual cause of a lock that needs frame rework on site.
7) What is the closest Grade 1 keyed knob lock alternative to the Sargent 8XG04 storeroom lock?
The Sargent 8XG04 is a Grade 1, heavy duty, single cylinder knob lock in storeroom/closet function. The closest keyed Grade 1 knob alternatives are the BEST 8K Series, a Grade 1 heavy duty single cylinder knob lock in entrance function, and the Corbin Russwin CK4851, a Grade 1 keyed Global knob lock in entrance/office function for 1-3/8 inch to 2 inch doors. Note the function difference: storeroom keeps the outside knob locked at all times with the key retracting the latch, while entrance/office allows the outside knob to be left unlocked.
8) My door is 2 inches thick - will the Sargent 8XG04 work, and what else should I look at?
The Sargent 8XG04 covers 1-3/8 inch to 1-3/4 inch doors, so a 2 inch door is outside that range. For thicker doors, the Corbin Russwin CK4851 Grade 1 keyed entrance/office knob and the CK4310 Grade 1 passage knob both cover 1-3/8 inch to 2 inch, and the Falcon X101 Grade 1 passage knobset covers 1-3/8 inch to 2-1/4 inch.
9) I need the same door but no key - what knob goes on a closet that only needs a latch?
For an opening that does not need to be keyed, the Sargent 8XG04 is the wrong choice since it is a keyed single cylinder storeroom lock. Grade 1 non-keyed knob options include the Schlage D10S passage latch, a heavy duty Grade 1 Orbit knob, the Falcon X101 heavy duty Grade 1 passage knobset for 1-3/8 inch to 2-1/4 inch doors, and the Corbin Russwin CK4310 Grade 1 passage/closet Global knob for 1-3/8 inch to 2 inch doors.
10) Can I use a residential knob like the Kwikset 400P instead of the Sargent 8XG04 on a storeroom door?
They are not equivalents. The Sargent 8XG04 is a Grade 1 commercial storeroom lock. The Kwikset 400P Polo keyed entry knob and the 400P-CP are Grade 3 entrance function for 1-3/8 inch to 1-3/4 inch doors, and the Master Lock BC Series biscuit knob is also Grade 3 keyed entry. Entrance function allows the outside knob to be unlocked by a button, which storeroom openings are usually specified to prevent.
11) Do I need to specify handing when ordering a Sargent 8XG04 storeroom knob lock?
No handing to call out. The 8XG04 is non-handed and the latch is reversible and self-adjusting for door bevel, so one part number works on left- and right-hand openings. That is useful if you stock spares for a building rather than ordering per door.
12) What finishes does the Sargent 8XG04 knob lock come in, and will it match the rest of my building?
Three finishes: 03 bright brass with clear coat, 10BE dark oxidized satin bronze, and 32D satin stainless steel. 32D is the common commercial standard and the usual match for existing school, office and healthcare hardware; 10BE suits darker traditional openings and 03 matches polished brass trim. All three are offered with either the standard cylinder or less cylinder.
13) Is a Grade 1 knob lock overkill for a storage room, or should I use Grade 2?
Grade 1 is the heavy duty tier and is what spec writers call for on high traffic commercial openings; the 8X Line is certified to ANSI/BHMA A156.2 Series 4000 Grade 1. On a low traffic closet in a light commercial building a Grade 2 cylindrical will do the job for less hardware. Where the door sees daily use, gets abused, or sits on a rated egress path, stay with Grade 1.
14) Is a knob lock the right choice, or do I need a lever for ADA?
A round knob requires grasping and twisting, so on openings that must be operable without tight grasping or wrist rotation, a lever is the usual answer. Knobs are still common on storage, mechanical and utility doors that are not part of an accessible route. The 8XG04 is a knobset, so if the door is on an accessible path, spec a lever trim lock instead.
15) Is there a lighter duty knob lock than the Sargent 8XG04 for low traffic interior doors?
Yes. The Sargent 8XG04 is Grade 1 heavy duty. For lower traffic openings, the Falcon W101 is a Grade 2 medium duty cylindrical knob lock with a 2-3/4 inch backset and fire rating, the Corbin Russwin CK4410 is a Grade 2 passage/closet Global knob for 1-3/8 inch to 1-3/4 inch doors, and the Dexter C2000 series offers Grade 2 knob locks in entry/office, classroom, passage and privacy functions for the same door thickness range.
16) I need a classroom function knob instead of storeroom - what are my options?
The Sargent 8XG04 is storeroom/closet function, where the outside knob stays locked and the key retracts the latch. If the opening calls for classroom function, where a key locks and unlocks the outside knob, the Dexter C2000 series offers a Grade 2 classroom cylindrical ball knob lock for 1-3/8 inch to 1-3/4 inch doors.
17) Does anything comparable to the Sargent 8XG04 take an interchangeable core instead of a standard cylinder?
The Sargent 8XG04 accepts SARGENT standard, Signature and Degree cylinders and can be ordered less cylinder. If your facility keys on an interchangeable core system, the Falcon X101 is a Grade 1 heavy duty cylindrical knobset supplied with an interchangeable core, and the BEST 8K Series is a Grade 1 heavy duty single cylinder knob lock.
18) Can I use the Sargent 8X storeroom knob on an exterior door?
Yes. The 8X Line is built for interior and exterior use, and the storeroom function keeps an exterior service or stockroom door secured at all times with key-only entry from outside. Pair it with the strike that matches your frame prep and a keyway that fits your existing key system.
How fast can I get the Sargent 28LC-8XG04 LB 32D 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 28LC-8XG04 LB 32D come with a warranty?
Absolutely. The Sargent 28LC-8XG04 LB 32D 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 28LC-8XG04 LB 32D?
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 Sargent 28LC-8XG04 LB 32D from ZenSupply?
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