BEST 6K Series Single Dummy Tr...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$121.00
$83.53
BEST 6K Series Single Dummy Trim Grade 2 Non-Keyed Cylindrical Knob Lock

BEST 6K Series Single Dummy Trim Grade 2 Non-Keyed Cylindrical Knob Lock

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Model: 6K01DT4C626
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$121.00
$83.53
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BEST 6K Series Single Dummy Trim Grade 2 Non-Keyed Cylindrical Knob Lock

Professional Grade 2 Cylindrical Lock Solution

The BEST 6K Series Single Dummy Trim delivers reliable performance for standard traffic commercial applications. This Grade 2 cylindrical knob lock features a 2 1/8" diameter case with 1/2" throw deadlocking latch and accommodates door thickness from 1 3/8" to 1 7/8". Built with brass and bronze components plus corrosion-treated internal steel mechanisms, this lockset exceeds ANSI Grade 2 standards for long-term reliability.

Professional Features & Benefits

  • Door Compatibility: Designed for 1 3/8" to 1 7/8" door thickness with 2 1/8" diameter bore for standard installations.
  • Grade 2 Performance: Exceeds ANSI Grade 2 standards and BHMA A156.2 Series 4000 Grade 2 listing for commercial applications.
  • Durable Construction: Brass and bronze component parts with corrosion-treated internal steel mechanisms for atmospheric protection.
  • Quick Rekeying System: BEST interchangeable core allows rapid key changes without lockset removal.
  • Concealed Mounting: Snap-on inside rose design eliminates exposed mounting screws for clean appearance.
  • Fire Rating Compliance: UL Listed for use on 3-hour A label single doors up to 4' x 8'.
  • Reversible Operation: Lockset reversible for either door hand without removing keyed knob components.
  • Multiple Backset Options: Available in 2 3/8", 2 3/4", 3 3/4", and 5" backsets for various door configurations.

Technical Specifications

  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Duty Level: Medium Duty
  • Electronic: No
  • Grade: Grade 2
  • Handle Type: Knob
  • Keyed: No
  • Keyed Function: Non-Keyed
  • Product Attribute: Cylindrical Locks
  • Product Category: Mechanical Locks
  • Product Function: Dummy
  • Product Group: Mechanical Locks
  • Product Subgroup: Bored Locksets
  • Product Type: Knobsets
  • Series: 6K Series
  • Standard Latch: 1/2" Throw
  • Standard Strike: 2-3/4" x 1-1/8" with Curved Lip
  • Subcategory: Bored Locksets

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness, stile width, and handing as applicable to this product.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and/or 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 BEST Quality?

BEST 6K Series cylindrical locks deliver professional-grade reliability with brass and bronze construction rated to exceed ANSI Grade 2 standards. UL Listed for 3-hour fire rating applications and BHMA certified for commercial use. Engineered for demanding commercial applications where dependable performance and quick rekeying capability are essential.

Product Specs

Series:
6K Series
Grade:
Grade 2
Duty Level:
Medium Duty
Keyed Function:
Non-Keyed
Standard Latch:
1/2" Throw
Standard Strike:
2-3/4" x 1-1/8" with Curved Lip
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Product Type:
Knobsets
Subcategory:
Bored Locksets
Keyed:
No
Electronic:
No
Commercial/Residential:
Commercial
Handle Type:
Knob
Product Attribute:
Cylindrical Locks
Product Function:
Dummy
Product Category:
Mechanical Locks
Department:
Door Hardware

BEST 6K01DT4C626 – Frequently Asked Questions

1) Does the BEST 6K single dummy knob actually latch, or is it just a pull?
It is trim only. The 1DT single dummy function in the BEST 6K Series is a fixed knob mounted on one face of the door with no latch, no spindle through the door, and no keying. You use it as a pull on a closet door, an inactive leaf of a pair, or a door held by a roller catch or ball catch. If the door has to latch, you need a passage or privacy function instead.
2) Which rose size should I order on the BEST 6K dummy knob?
Two rose diameters are offered: the 2-9/16 inch standard rose and a larger 3-3/8 inch rose. Pick the 3-3/8 inch if you are covering an oversized or previously bored hole, or if the other doors in the building already carry the larger rose. Both use a snap-on inside rose, so no mounting screws show on the face.
3) Can I use a BEST 6K dummy knob on a fire rated door?
The 6K Series is UL Listed for 3-hour A label single doors up to 4 by 8 feet. Note that a dummy contributes nothing to latching, and a fire door assembly has to positive latch, so a dummy only belongs on the inactive leaf of a fire rated pair or on a non-rated opening. The active leaf needs a latching function.
4) What is the closest alternative to a BEST 6K single dummy knob from another brand?
The Schlage A170 is the direct counterpart, a Grade 2 cylindrical single dummy knob trim with the same 1-3/8 to 1-7/8 inch door thickness range. For lighter duty commercial or residential work, the Cal-Royal BA40 dummy knob covers 1-3/8 to 1-3/4 inch doors, and Bravura's Biloxi is a Grade 2 dummy knobset. On the decorative side, Omnia's 434/0 and 442/00 are solid brass single dummy knob latchsets.
5) I need a knob on this door that actually latches, not a dummy. What should I order instead?
A dummy trim like the BEST 6K 1DT is fixed trim with no latch, so if the door has to stay closed you need a passage lock. Commercial Grade 2 passage knobs include the Corbin Russwin CK4410 in the CK4400 Series with a 1-3/8 inch to 1-3/4 inch door thickness range, the Falcon W101 medium duty Grade 2 passage/closet knob with 2-3/4 inch backset, and the Dexter C2000 Grade 2 passage ball knob. For a heavier opening, the Schlage D10S and the Falcon X101 are Grade 1 heavy duty passage knobsets.
6) My door is 2 inches thick. Does the BEST 6K dummy trim cover it, and what does if not?
The BEST 6K 1DT covers 1-3/8 inch to 1-7/8 inch door thickness, so a 2 inch door is outside that band. Corbin Russwin knob locks in the 4000 family reach 2 inches, including the CK4310 Grade 1 passage/closet knob and the CK4851 Grade 2 entrance/office knob with conventional cylinder, and the Falcon X101 Grade 1 passage knobset with interchangeable core covers 1-3/8 inch to 2-1/4 inch. Note those are latching functions rather than dummy trim.
7) Do I need to bore a 2-1/8 inch hole for a BEST 6K dummy knob?
No cross-bore is needed for the dummy trim itself. The 2-1/8 inch bore and the 1-3/8 to 1-7/8 inch door thickness range quoted for the 6K Series apply to the functioning cylindrical locks in the family; a single dummy mounts to the face of the door. If you are matching a dummy to an existing 2-1/8 inch prepped opening on a nearby door, the knob and rose will read the same across both.
8) What finishes does the BEST 6K dummy knob come in so it matches the rest of my doors?
Seven BHMA finishes: 605 bright brass, 606 satin brass, 611 bright bronze, 612 satin bronze, 613 satin bronze oil-rubbed, 625 bright chrome and 626 satin chrome. Each is available with either rose size. 626 satin chrome is the usual commercial default and matches most institutional hardware already in the field.
9) Is the BEST 6K dummy trim handed?
No handing to specify. A single dummy has no latch mechanism to reverse, and the 6K Series locksets are reversible for either hand in any case. Order finish and rose size only.
10) Do I order one or two BEST 6K dummy knobs for a double door?
One per face. The 1DT is a single dummy, so a pair of doors where you want a knob on both outside leaves takes two. Some competing dummy sets are sold as pairs, for example the Emtek Arts and Crafts hammered egg dummy and the Georgetown and Providence crystal dummies, so check the pack before comparing counts.
11) Is the BEST 6K knob durable enough for a school or hospital corridor?
It is built for commercial medium duty service, Grade 2 to BHMA A156.2 Series 4000, with brass and bronze components and corrosion-treated internal steel. That covers offices, schools, healthcare, retail and multi-tenant residential. For heavier abuse on a high-traffic opening, step up to a Grade 1 cylindrical knob such as the Sargent 8XG04 or the Falcon X Series.
12) Is there a lower-cost dummy knob if the door is in an apartment interior rather than a commercial corridor?
Yes. The Cal-Royal BA40 is a dummy knob cylindrical lock in the Barrington BA Series covering 1-3/8 inch to 1-3/4 inch doors, and the Bravura Biloxi is a Grade 2 dummy knobset with round trim. Both are dummy function like the BEST 6K 1DT, but the 6K is the commercial-duty option, built to BHMA A156.2 Series 4000 Grade 2 with brass and bronze parts and UL listing for 3-hour A label single doors.
13) Which dummy knobs are decorative rather than commercial-style like the BEST 6K?
For residential and decorative openings, the Emtek Arts and Crafts Hammered Egg dummy knobset ships as a pair, as do the Emtek Classic Brass Crystal Georgetown and Providence dummy knobs. Omnia offers the 434/0 egg-shaped single dummy in solid brass, the 442/00 single dummy with a 2-5/8 inch rose, and the 458/0 single dummy with a 2-3/8 inch backset. The BEST 6K 1DT is the commercial knob trim, Grade 2 and UL listed for 3-hour A label single doors, with a snap-on inside rose that hides the mounting screws.
14) If I want a knob that matches the BEST 6K look but needs a key, what are the options?
The BEST 6K 1DT is non-keyed dummy trim, so a keyed opening needs a different function. Sargent offers the 6G04 Grade 2 storeroom/closet knob lock with single cylinder in the 6 Line Series and the 8XG04 Grade 1 heavy duty storeroom knob with 2-3/4 inch backset. Corbin Russwin CK4851 is a Grade 2 entrance/office knob with a conventional cylinder, and the Dexter C2000 line includes Grade 2 entry/office and classroom ball knob functions.
15) Is exit device knob trim the same thing as the BEST 6K dummy trim?
No. The Sargent 28C-KNOB is knob and rose trim for a 28 Series exit device on 1-3/4 inch doors, the Sargent 78-2875 is an outside knob only for the 7800 Series, and the Imperial USA ED-BKL580 is storeroom function knob trim for the ED-500 exit device series. Those mount to a panic device chassis. The BEST 6K 1DT is cylindrical knob trim bored into the door itself, using a 2-1/8 inch diameter bore.
16) The door is a restroom and needs a thumbturn. What replaces the BEST 6K dummy there?
A dummy trim has no locking function, so a privacy knob is the right call. Grade 2 options include the Dexter C2000 privacy ball knob for 1-3/8 inch to 1-3/4 inch doors. Cal-Royal BER20 is a Grade 3 privacy knob with brass trim in the same thickness range, and Pamex FTF10 is a Grade 3 Baron privacy knob. For decorative openings, Deltana 6112 St. Thomas and Baldwin 5077 Bethpage are privacy knobs.
17) Do any comparable knobs use an interchangeable core like the BEST 6K series?
The BEST 6K carries the BEST interchangeable core, which lets a keyed member of the series be rekeyed without pulling the lockset. Among the peers, the Falcon X101 is a Grade 1 heavy duty cylindrical passage knobset with interchangeable core. Keep in mind the 6K single dummy trim itself is non-keyed, so the core applies to the keyed functions in the series rather than to the dummy.
How fast can I get the BEST 6K01DT4C626 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 BEST 6K01DT4C626 come with a warranty?
Absolutely. The BEST 6K01DT4C626 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 BEST 6K01DT4C626?
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 BEST 6K01DT4C626 from ZenSupply?
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