Satin chrome. IC / removable key core sold separate.
IC / removable key core sold separate.Helpful buying guide.

Simplex 1021 (Less Core) 5-Button Combination Cipher Lock



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Prepped for removable inter-changeable key cores.

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SKU: 1021 (less-core)

GoKeyless™ is a factory trained and authorized Kaba Simplex® dealer. Sales, service, support, valid warranties. It's why thousands of clients around the world choose GoKeyless™ for their security and access control needs each year.

Simplex 1021 – Combination Entry & Prepped for Key Override
(Use your own IC/Removable core, or order one from us at checkout)
Tough-as-nails combination lock from the leader in top of the line security solutions, Kaba Ilco.  Kaba has been making high quality security products for over 100 years.  The Simplex 1000 Series is a heavy-duty stand-alone security lock that is highly weather resistant.  Entry is gained via a 1 to 5 digit code that is sequential.  Vandal resistant, the Simplex locks have found widespread acceptance in high-traffic commercial, institutional, and government buildings.

Need this lock with a lever handle instead?  Click here

  • 100% Mechanical HEAVY DUTY push button lock
  • Thousands of possible codes combinations
  • Auto-locking; can be ordered with passage mode feature in Simplex 1041 model
  • HEAVY DUTY Latchbolt with deadlocking plunger
  • Covers existing standard ASA 161 door hole
  • Fits left and right swinging doors
  • All hardware and instructions included with order
  • Low maintenance, no batteries or wires
  • Fits nearly all hinged doors
  • Backset:  2 3/4″ included (2 3/8″ available at checkout)  How do I measure?
  • Prepped for key override.  When you choose Best IC – Prep you may use your own small-format IC cores in this lock, including Best, Falcon, KSP, and Arrow.  When you choose one of the other name brand IC preps, you can then use that name brand IC core in the lock.  Need us to supply the core?  Simply order at checkout
  • 3-year manufacturer warranty

Exterior Dimensions

7 3/8″ (H) x 3 1/8″ (W) x 3 3/16″ (D)

Inside Dimensions

9″ (H) x 3 1/4″ (W)

Door Thickness Minimum

1 3/8″

Door Thickness Maximum

2 1/4″

Code Length

1 to 5 Digits

Code Capacity



Weather Resistant

Door Handing


Door Prep

Standard 2-1/8″ Cross-Bore, Edge Bore: 1″, Through-Bolt Hole(s)

Door Stile Width

Minimum 4″


Cast knob, Cast front housing, unified trim plate


Kaba Access


Kaba Simplex

Handle Type


Door Opening


Locking Device

Cylindrical Latch

Access Type

Keypad – Digits


2 ¾

Fire Rating

3-hour UL/ULC fire rating for “A” labeled doors


7.25 lbs


3 Year Manufacturer

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