BEST 8K Series Grade 1 Dummy T...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$343.00
$313.71
BEST BEST 8K Series Dummy Trim Non-Keyed Knobs BEST-8K-DT

BEST 8K Series Grade 1 Dummy Trim Non-Keyed Cylindrical Knobset

(No reviews yet) Write a Review

Model: BEST-8K01DT4A626
$343.00
$313.71
Selected Finish is
Selected Dummy Trim is
Selected Knob Style is
Selected Rose is

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

$343.00
$313.71
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

BEST 8K Series Grade 1 Dummy Trim Non-Keyed Cylindrical Knobset

Premium Heavy-Duty Cylindrical Knobset for Commercial Applications

The BEST 8K Series Grade 1 Dummy Trim Non-Keyed Cylindrical Knobset delivers professional-grade performance for high-traffic commercial environments. Featuring knobs machined from solid brass or bronze bar stock with 2 1/8" diameter and 2 7/8" projection, this heavy-duty knobset accommodates doors from 1 3/8" to 2" thick with standard 2 3/4" backset. The 2 1/16" diameter chassis fits standard 2 1/8" door bore, while the 9/16" throw deadlocking latch provides reliable operation exceeding ANSI Grade 1 requirements.

Professional Features & Benefits

  • Heavy-Duty Construction: Knobs machined from solid brass or bronze bar stock with steel-reinforced roses for exceptional durability in commercial applications.
  • Grade 1 Performance: Exceeds ANSI Grade 1 requirements for security and reliability with proven heavy-duty design for high-traffic areas.
  • Versatile Door Compatibility: Adjustable for door thickness from 1 3/8" to 2" standard, with special E trim available for 2 1/8" to 3" doors.
  • Professional Installation Specifications: 2 1/16" diameter chassis fits 2 1/8" door bore with 1" latch hole and standard 2 3/4" backset configuration.
  • Enhanced Security Design: Snap-on inside rose with no exposed screws and friction insert inside rose resists loosening for tamper resistance.
  • Smooth Operation: Steel retractor with low friction bearings and long bearing length in chassis ensures wear-resistant, reliable performance.
  • Rotating Knob Face: Allows easy hand of door change without removing the knob for installation flexibility.
  • Corrosion-Resistant Components: Internal parts are brass or corrosion-treated steel for long product life in demanding environments.

Technical Specifications

  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Door Hand Direction: Non-Handed
  • Duty Level: Heavy Duty
  • Electronic: No
  • Grade: Grade 1
  • Handle Type: Knob
  • Keyed: No
  • Keyed Function: Non-Keyed
  • Lock Function: Dummy
  • Product Attribute: Cylindrical Locks
  • Product Category: Mechanical Locks
  • Product Function: Dummy
  • Product Group: Mechanical Locks
  • Product Subgroup: Bored Locksets
  • Product Type: Knobsets
  • Series: 8K Series
  • Subcategory: Cylindrical

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness from 1 3/8" to 2" and standard 2 1/8" bore with 1" latch hole.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door surfaces for 2 3/4" backset configuration.
  3. Prepare door by drilling required 2 1/8" bore hole and 1" latch hole as specified in manufacturer instructions.
  4. Install the 2 1/16" diameter chassis and secure the knobset to door per manufacturer torque specifications with threaded roses.
  5. Adjust knob alignment and test rotating knob face feature for proper operation and smooth function throughout the full range of motion.
  6. Test knobset 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
  • Government and Military Facilities
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • International Projects in Non-ADA Compliant Regions

Why Choose BEST Quality?

BEST 8K Series cylindrical knobsets deliver professional-grade reliability with solid brass or bronze construction machined from bar stock and Grade 1 performance exceeding ANSI requirements. The heavy-duty design features steel retractor with low friction bearings and corrosion-treated internal components for long-term durability. Engineered for demanding commercial applications where dependable performance and premium workmanship are essential.

Product Specs

Series:
8K Series
Grade:
Grade 1
Duty Level:
Heavy Duty
Keyed Function:
Non-Keyed
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Product Type:
Knobsets
Subcategory:
Cylindrical
Keyed:
No
Electronic:
No
Commercial/Residential:
Commercial
Handle Type:
Knob
Lock Function:
Dummy
Product Attribute:
Cylindrical Locks
Product Function:
Dummy
Door Hand Direction:
Non-Handed
Product Category:
Mechanical Locks
Department:
Door Hardware

BEST BEST-8K01DT4A626 – Frequently Asked Questions

1) Does the BEST 8K dummy knob trim actually latch, or is it just a pull?
It is trim only. The 8K dummy knobset is a non-keyed dummy function, so the knob is fixed and there is no latch or turning action. Use it on the inactive leaf of a pair, on a closet or cabinet door held by a ball catch or roller catch, or wherever you need matching knob appearance without any latching. If you need the door to latch, you want a passage function instead.
2) What is the difference between single and double dummy trim on the BEST 8K?
Single gives you one knob for one face of the door. Double gives you a knob on both faces. On a pair of doors with an inactive leaf you normally want a single on the leading face; on a fixed French door or a closet door you touch from both sides, order the double. Both are offered on the 8K dummy trim.
3) Will the 8K dummy knob fit a 1-3/4 inch commercial door?
Yes. The 8K knobset is built for doors 1 3/8 inch to 2 inch thick, which covers the standard 1 3/4 inch commercial door and older 1 3/8 inch interior doors. For thick doors from 2 1/8 inch up to 3 inch, BEST offers special E trim, and there is a 3-3/8 inch concave thick-door rose choice for that situation.
4) Can I mount the BEST 8K dummy trim on an existing 2-1/8 inch bored door?
Yes. The 8K chassis is 2 1/16 inch diameter and drops into a standard 2 1/8 inch cross bore, with a 1 inch latch hole and 2 3/4 inch backset prep. That is the common commercial cylindrical prep, so you can usually swap onto an existing door with no new boring.
5) I need a dummy knob but Grade 1 is more than the job needs. What else is there?
For lighter duty, the Schlage A170 single dummy trim is a Grade 2 cylindrical dummy knob for 1-3/8 to 1-7/8 inch doors, and the Cal-Royal BA40 Barrington dummy knob covers 1-3/8 to 1-3/4 inch doors. The Bravura Biloxi is a Grade 2 round-trim dummy knobset. If the look matters more than the grade, Emtek's Hammered Egg and crystal Georgetown and Providence dummy pairs are decorative options. The BEST 8K remains the Grade 1 choice with the widest 1 3/8 to 2 inch thickness range.
6) I need a knob on this door that actually latches, not a dummy. What should I order instead?
The BEST 8K dummy trim has no latch and no key - it is fixed pull trim only. For a latching non-keyed knob at Grade 1, the Schlage D10S passage latch knob and the Corbin Russwin CK4310 passage/closet knob are both Grade 1 non-keyed cylindrical knobs, the CK4310 covering doors 1-3/8 inch to 2 inch. The Falcon X101 is also a Grade 1 heavy duty cylindrical passage knobset and is fire rated, for doors 1-3/8 inch to 2-1/4 inch.
7) What is the closest alternative to the BEST 8K dummy knob trim from another commercial brand?
The Schlage A170 is the nearest commercial dummy knob trim to the BEST 8K dummy: it is a single dummy trim, non-keyed cylindrical knob lock rated Grade 2 and heavy duty, for doors 1-3/8 inch to 1-7/8 inch thick. The BEST 8K dummy trim is Grade 1, heavy duty, non-keyed, and comes in both single and double dummy configurations, so a two-sided opening can be covered from the same series.
8) The door needs privacy or keyed control, not a dummy knob. Which knob locks cover that?
Dummy trim like the BEST 8K provides no locking at all - it is non-keyed with a dummy function. For privacy, the Dexter C2000 privacy ball knob is Grade 2 non-keyed for 1-3/8 inch to 1-3/4 inch doors, and the Cal-Royal BER20 is a Grade 3 privacy knob for the same thickness range. For keyed control, the Sargent 8XG04 is a Grade 1 heavy duty storeroom/closet knob lock with a 2-3/4 inch backset, and the Corbin Russwin CK4851 is an entrance/office knob lock for 1-3/8 inch to 2 inch doors.
9) Will the BEST 8K dummy trim work on a thick door, or do I need another brand?
The BEST 8K accommodates 1-3/8 inch to 2 inch doors as standard, with special E trim for 2-1/8 inch to 3 inch doors and a 3-3/8 inch concave thick-door rose option. Among the commercial peers, the Corbin Russwin CK4310 passage knob covers 1-3/8 inch to 2 inch and the Falcon X101 covers 1-3/8 inch to 2-1/4 inch, while the Schlage A170 dummy trim stops at 1-7/8 inch.
10) Do I need to order handing for the BEST 8K dummy knobset?
No handing to specify. The 8K is non-handed, and the rotating knob face lets you change the hand of the door without pulling the knob off, so one part covers left and right openings. That is useful for a property manager keeping one item on the shelf for a whole building.
11) What knob styles and rose shapes can I get to match the other doors in my building?
Two knob styles, round and tulip, and four rose options: 2-9/16 inch concave, 3-3/8 inch concave, 3-3/8 inch concave for thick doors, and 3-3/8 inch convex. The larger 3-3/8 inch roses are the usual pick when you are covering wear marks or an older, larger rose footprint on a retrofit.
12) What finishes does the BEST 8K dummy knob come in, and is there an antimicrobial option?
Ten finishes: 605 bright brass, 606 satin brass, 611 bright bronze, 612 satin bronze, 613 satin bronze oil-rubbed, 619 satin nickel, 625 bright chrome, 626 satin chrome, 626AM satin chrome antimicrobial, and 690 statuary dark bronze. The 626AM antimicrobial finish is the one healthcare and food-service facilities usually standardize on.
13) Is the BEST 8K dummy trim Grade 1, and does it hold up in a school or hospital corridor?
Grade 1, heavy duty, commercial rated. The knobs are machined from solid brass or bronze bar stock with steel-reinforced roses, internal parts are brass or corrosion-treated steel, and the inside rose snaps on with no exposed screws plus a friction insert that resists loosening. That combination is why it gets specified for schools, healthcare and government work.
14) Is the BEST 8K dummy knobset ADA compliant?
Knob hardware is not the right choice where an ADA-compliant operable part is required, and the 8K dummy is listed for commercial work including international projects in non-ADA-compliant regions. On a true dummy application there is no operation at all, but if the opening needs an accessible operable handle, specify a lever instead of a knob.
15) Which knob products look like a dummy substitute but are not?
Exit device and outside-trim knobs are not interchangeable with a dummy. The Sargent 28C-KNOB is exit device trim with knob and rose in entrance function for 1-3/4 inch doors, the Sargent 78-2875 is an outside knob only with B design, and the Imperial USA ED-BKL580 is knob trim in storeroom function - all of those mount to or work with other devices rather than standing alone as fixed pull trim. The BEST 8K dummy trim is a non-handed dummy knob, available single or double.
16) How far does the 8K knob stick out from the door face?
The knob is 2 1/8 inch in diameter with a 2 7/8 inch projection from the door face. Worth checking on a narrow corridor, an inactive leaf next to a wall return, or anywhere clearance to adjacent trim is tight.
How fast can I get the BEST BEST-8K01DT4A626 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 BEST-8K01DT4A626 come with a warranty?
Absolutely. The BEST BEST-8K01DT4A626 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 BEST-8K01DT4A626?
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 BEST-8K01DT4A626 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.
!