Dormakaba Simplex 1000 Series ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$735.00
$458.63

Dormakaba Simplex 1000 Series Mechanical Pushbutton Cylindrical Knob Lock, Combination Entry and Key Override

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Model: 1021S-26D-41
$735.00
$458.63
Selected Finish is

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

$735.00
$458.63
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Product Summary

Simplex Mechanical Pushbutton Locks eliminate problems and costs associated with issuing, controlling, and collecting keys and cards.

The Simplex 1000 Series provides exterior access by combination, while allowing free egress. This mechanical lock, with knob option, eliminates the material and labor expense of battery replacements, has a single access-code and is programmed via the keypad without removing the lock from the door.

Product Details

Locking Device:Cylindrical latch with 3-hour UL/ULC fire rating on "A" labeled doors

Number of Codes:Single access code—one easy-to-manage code for all users

Programming:Lock is easily programmed via keypad without removing lock from the door

Handing:Factory-handed for left-hand doors; easily field reversible

Operation Modes:

  • Pushbutton Access
  • Passage (select models)—allows access without using the lock entry code. Feature activated from the inside with a thumbturn or key (included with all passage feature models).
  • Lockout (select models)—disables the lock from the inside so that the entry code cannot be used to gain access. Access is permitted using the key override only.

Economical:A cost effective access control solution

Technical Details:

Construction: Heavy-duty cylindrical lock housing with cast front housing; unified trim plate; cast knobs

Numeric Keypad: Vandal resistant, solid metal pushbuttons

Handing: Factory-handed for left-hand doors; easily field reversible

Backset: 2¾" (70 mm), 2⅜" (60 mm)

Latch: ½" (13 mm) throw latch, ¾" (19 mm) throw latch (optional)

Minimum Stile Recommended: 5" (127 mm)

Strike: Standard strike plate; ASA strike plate

Key Override

  • Interchangeable Cores: Small format—Best and equivalents (6 or 7-pin length); core not included
  • Removable Cores: Large format—Medeco/ASSA/Yale/Abloy (5 or 6-pin length), Corbin Russwin, Schlage, and Sargent; core not included

Door Preparation: Easily installs on wood or metal doors. ASA 161 door preparation with additional through bore holes required.

Door Thickness: 1⅜" (35 mm) to 2¼" (57 mm)—Pre-assembled to accommodate 1⅝" (41 mm) to 2" (51 mm)

Durability: D.O.D. Compliant 5220.22M for supplemental access control; weather resistant

Fire Rating: 3-hour UL/ULC fire rating for "A" labeled doors

Warranty: 3-year warranty

Standard Finishes:

  • Satin Chrome 26D (626)
  • Antique Brass 05 (609)

Optional Finishes:

  • Bright Brass 03 (605)
  • Bright Chrome 026 (625)

 

DOWNLOADS and RESOURCES

Manufacturer Resources

Product Specs

Product Group:
Mechanical Locks
Series:
Simplex 1000 Series
Grade:
Grade 1
Product Type:
Simplex Mechanical Push Buttons Locks
Warranty:
3 Year Limited
Keyed Function:
Single Cylinder
Subcategory:
Push Buttons Locks
Product Subgroup:
Bored Locksets
Keyed:
Yes
Stile Width:
5"
Commercial/Residential:
Commercial
Features:
Vandal resistant, solid metal pushbuttons
Lock Type:
Cylindrical
Handle Type:
Knob
Stile Type:
Wide Stile
Lock Function:
Combination Entry Function With Key Override
Product Model:
1000
Backset (Distance):
2-3/4",Key Override,B - SFIC
Product Function:
Entrance
Door Hand Direction:
Non-Handed
Door Strike:
Standard Strike plate, ASA Strike plate
Product Category:
Mechanical Locks
Product Substrate:
Brass or Bronze

Dormakaba 1021S-26D-41 – Frequently Asked Questions

1) What type of lock is the Dormakaba Simplex 1000 Series?
This is a mechanical pushbutton cylindrical knob lock. It provides combination entry plus key override functionality. No power or wiring required.
2) What door types work with this cylindrical lock?
Standard wood and metal doors with 1-3/4" to 2" thickness. Requires 2-1/8" bore hole. Not suitable for glass doors or very thin hollow core doors.
3) How do I determine left or right hand for installation?
Stand on the side where door opens toward you. If hinges are on your left, it's left hand. If hinges are on your right, it's right hand. Verify handing before ordering.
4) What finishes are available for the Simplex 1000?
Common finishes include satin chrome, bright brass, and oil-rubbed bronze. Check product specifications for exact finish options. All finishes designed for commercial durability.
5) What security grade does this lock meet?
The Simplex 1000 Series meets ANSI Grade 2 requirements. Suitable for medium-duty commercial applications and high-traffic residential use.
6) How many combination codes can I set?
Typically allows one active combination at a time. Combination can be changed without removing lock from door. Uses 2-5 digit combinations from available buttons.
7) What parts come with the cylindrical lock set?
Includes both knobs, latch assembly, strike plate, mounting screws, and installation template. Keys included for override cylinder. Check packaging for complete parts list.
8) Can I install this lock myself?
Installation requires standard door prep with 2-1/8" hole saw and chisel work for latch plate. Follow manufacturer template exactly. Consider professional installation for best results.
9) How do I maintain the pushbutton mechanism?
Clean buttons regularly with mild soap and water. Lubricate internal mechanism annually with graphite spray. Avoid oil-based lubricants which attract dirt.
10) What other Dormakaba Simplex models are available?
Browse our Dormakaba collection for deadbolt versions, lever handles, and higher security grades. Each model suits different door types and security needs.
11) Will this work in outdoor installations?
Designed for interior use primarily. For exterior applications, verify weather sealing and finish durability for your climate conditions. Consider covered entryway installation.
12) What backset measurement does this lock use?
Standard 2-3/8" backset is most common. Some models offer adjustable or 2-3/4" backset options. Measure existing door prep or check manufacturer specifications before ordering.
How fast can I get the Dormakaba 1021S-26D-41 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 Dormakaba 1021S-26D-41 come with a warranty?
Absolutely. The Dormakaba 1021S-26D-41 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 Dormakaba 1021S-26D-41?
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 Dormakaba 1021S-26D-41 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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