Sargent 1KB Mortise Lock Cylin...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$27.89
$23.17
1KB-1

Sargent 1KB Mortise Lock Cylinder Rosette with Free-Spinning Vandal Protection

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Model: 1KB-1-26D
From the Conventional Key System Collection
Selected Finish is

In Stock (leaves warehouse same day if ordered before 3pm ET)

$27.89
$23.17
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Sargent 1KB Mortise Lock Cylinder Rosette with Free-Spinning Vandal Protection - 1-1/2" Diameter

Professional Cylinder Protection Accessory for 8200 Series Mortise Locks

The Sargent 1KB Mortise Lock Cylinder Rosette provides essential protection for projecting cylinders in 8200 Series mortise lock installations. This precision-engineered accessory features a 1-1/2" diameter design with free-spinning vandal protection and is constructed from cast brass, bronze, or stainless steel materials. Available in 12 finish options including 3, 4, 10, 10B, 10BE, 10BL, 20D, 26, 26D, 32, 32D, and BSP finishes for comprehensive architectural coordination.

Professional Features & Benefits

  • Precise Dimensional Specifications: 1-1/2" (38mm) diameter design ensures proper fit and coverage for projecting cylinders in mortise lock applications.
  • Free-Spinning Vandal Protection: Rotating design prevents grip and torque application, protecting cylinder mechanisms from vandalism and forced entry attempts.
  • Heavy-Duty Construction: Available in cast brass, bronze, or stainless steel materials for exceptional durability in commercial applications.
  • 8200 Series Compatibility: Specifically designed for use with Sargent 8200 Series mortise locks when cylinders project from door surfaces.
  • Standard Integration: Furnished standard with 8200 LN and L rose design mortise trim for seamless installation compatibility.
  • Comprehensive Finish Options: Available in 12 finish options including 3, 4, 10, 10B, 10BE, 10BL, 20D, 26, 26D, 32, 32D, and BSP for architectural coordination.
  • Complete Assembly: Includes compression spring component for proper installation and reliable long-term operation.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

This accessory component is designed for use with compatible Sargent 8200 Series mortise locks. Refer to the parent device installation instructions and manufacturer documentation for proper integration. Ensure compatibility with existing hardware before installation.

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 mortise lock accessories deliver professional-grade reliability with cast brass, bronze, or stainless steel construction engineered for demanding commercial applications. The free-spinning vandal protection design and precision 1-1/2" diameter specifications ensure dependable cylinder protection where security and durability are essential.

Product Specs

Product Type:
Mortise Rose
Product Group:
Mechanical Locks
Product Subgroup:
Parts and Accessories
Subcategory:
Parts and Accessories
Commercial/Residential:
Commercial
Collection:
Conventional Key System
Series:
1KB Series
Parts and Accessories Type:
Replacement Parts
Product Attribute:
Parts and Accessories
Product Category:
Mechanical Locks
Department:
Door Hardware

Sargent 1KB-1-26D – Frequently Asked Questions

1) What is the Sargent 1KB cylinder rosette actually for?
The 1KB is a cylinder rosette (also called a cylinder collar) that rings the mortise cylinder where it projects past the door face on Sargent 8200 Series mortise locks. It free-spins, so a hand or a wrench can't get a grip on it to torque the cylinder out of the lock. It's a protection ring, not a lock or a trim rose for the lever, and it ships with a compression spring so it stays sprung against the door face.
2) How do I pick the right size Sargent 1KB cylinder collar for how far my cylinder sticks out?
Size the 1KB to the projection you need to take up. It comes in 5/16 inch, 7/16 inch, 9/16 inch, and 11/16 inch. Measure how far the cylinder face stands proud of the door or the trim rose and order the collar that fills that gap; too thin and the collar rattles, too thick and the cylinder sits deeper than the cam engagement wants. The outside diameter is 1-1/2 inches on every size.
3) Do I need to order a 1KB collar separately with Sargent 8200 LN trim?
No, not if you're buying 8200 LN or L rose design trim new. The 1KB is furnished standard with those trims. You order it loose when you're servicing an existing opening, replacing a lost or damaged collar, or changing to a different collar thickness because the cylinder projection changed.
4) Will a Sargent 1KB rosette fit escutcheon trim instead of a rose trim?
The 1KB is specified for the 8200 Series with LN and L rose design trim, where the cylinder comes through a round rose. On escutcheon trim the cylinder opening is part of the plate, so the collar application is different. If you're working an escutcheon opening, check the 7800/8200 mortise lock installation template for how the cylinder hole is prepped on your trim before you order collars.
5) What finish do I order to match the rest of my Sargent lever trim?
Match the collar to the trim finish code, not by eye. The 1KB runs 03, 04, 09, 10, 10B, 10BE, 10BL, 14, 15, 20D, 26, 26D, 32, 32D, plus BSP black suede powder coat and WSP white suede powder coat. If your building standard is 26D satin chrome or 32D satin stainless, those are the two that cover most commercial openings and both are on the list.
6) Is a free-spinning cylinder collar worth it on a school or apartment entry?
On any opening where the cylinder is reachable from the public side, yes. A fixed collar or a bare projecting cylinder gives an attacker something to clamp and twist, and twisting the cylinder out is the fast way through a mortise lock. The 1KB spins under that load so the torque never reaches the cylinder. It's a commercial-rated part, and it's the kind of thing worth standardizing across a building rather than adding one door at a time.
7) Does the Sargent 1KB work with an interchangeable core or a high security cylinder?
The 1KB is a Conventional Key System part. It sizes to the cylinder's projection past the door face, so what matters is how far your cylinder stands proud and that the collar is 1-1/2 inches across the face. If you're running a large format IC or a proprietary high security cylinder in an 8200, measure the projection first rather than assuming the collar that came with the trim still fits.
8) What material is the Sargent 1KB cylinder collar made of?
Cast brass, bronze, or stainless steel, depending on the finish you order. The plated brass and bronze finishes (03, 04, 10B, 20D and the like) sit on cast base metal; 32 and 32D are stainless. For coastal or wash-down exteriors, a stainless collar holds up better than a clear-coated brass one where the lacquer is the only thing between the base metal and the weather.
9) How many 1KB collars do I need per door?
One per exposed cylinder. A single-cylinder 8200 function takes one collar on the keyed side; a double-cylinder function with a cylinder on both faces takes two, and the two sides can need different thicknesses if the trim differs. Each one comes as a collar plus its compression spring.
How fast can I get the Sargent 1KB-1-26D 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 1KB-1-26D come with a warranty?
Absolutely. The Sargent 1KB-1-26D 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 1KB-1-26D?
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
Why buy the Sargent 1KB-1-26D from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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