Simplex 5021
Extra Heavy-Duty Combination Door Lock
$452.92 – $627.83
Keep it simple. The Simplex 5021 hits the top of the charts for security and reliability with easy keyless access. This heavy duty and fully mechanical keyless lock reduces the costs and problems associated with electronic maintenance, managing keys, and labor.
Need assistance or have questions? Call our Cabinet Product Specialists at 877-439-5377 for more information and ordering assistance. We’re here to help!
Need assistance or have questions? Call our Commercial Product Specialists at 877-439-5377 for more information and ordering assistance. We’re here to help!
- ADA compliant lock
- 100% mechanical push-button lock
- 6 decorative finishes. Bright brass and satin brass are PVD finishes. The black finish features satin chrome levers and accents. The dark bronze PVD finish is a simulated 10B/613 finish and features brass accents. Premium finish (bright chrome) may result in a small delivery lead time – please call (877) 439-5377 to verify
- Thousands of possible codes combinations
- Change code with change tool (provided) from exterior side on 5021 and 5041 models, interior side on 5031 and 5051 model to meet Dept. of Defense standards
- Auto-locking; available for order with passage mode feature in 5041 model
- Covers existing standard ASA 161 door hole
- Kaba 5000 Extra heavy duty latchbolt with deadlocking plunger
- Fits left and right swinging doors
- All hardware and instructions included
- Backset: 2 3/4″ included (2 3/8″ available at checkout) How do I measure?
- Low maintenance, no batteries or wires
- Fits nearly all hinged doors
- Key override – lock comes furnished with a 6 pin conventional Schlage cylinder with Schlage C keyway for emergency access

- Upgrade opportunity: Want to assign each user their own code? Want to track entries? Check out Kaba E-Plex E5031 |
Exterior Dimensions | 8 7/8 (H) x 3 3/8 (W) x 3 3/16 (D) in. |
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Inside Dimensions | 8 7/8 (H) x 3 3/16 (W) x 2 1/8 (D) in. |
Door Thickness Minimum | 1 3/8 in. |
Door Thickness Maximum | 2 1/4 in. |
Door Handing | Reversible |
Door Stile Width | Minimum 5 in. |
Door Prep | Standard 2 1/8 in. Cross-Bore, Edge Bore: 1 in., Through-Bolt Hole(s) |
ANSI Rating | A156.2, Grade 1 (Best) |
BHMA Rating | Grade 1 (Best) |
Environmental | Weatherproof |
Code Length | 1 to 5 Digits |
Code Capacity | 1 |
Backset | 2 3/4 in. |
Construction | Extra heavy-duty solid cast housings, Solid cast, ADA-compliant levers |
Manufacturer | dormakaba |
Brand | Kaba Simplex |
Handle Type | Lever Handle Door Locks |
Door Opening | Standard |
Lock Features | Auto Relocking |
Locking Device | Cylindrical Latch |
Access Type | Key, Keypad – Digits |
Keyway | Schlage C |
Fire Rating | 3-hour UL/ULC fire rating for A labeled doors |
Weight | 9.25 lbs |
Warranty | 3 Year Manufacturer |
Authentication | Single Factor |
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Customer Questions & Answers
- A
If you would like more than two keys, we can make extra copies for you when you add our Key Copy Service to your order!
- Q Can you open the door with one hand or do you have to press enter at the same time you turn the d... answer nowAsked by January 3, 2023 2:16 PMonA
After putting in a valid code this lock will remain unlocked until the handle is turned, then it will relock.
- Q The lock opens when you press enter. What is the problem? answer nowAsked by September 28, 2022 7:33 PMonA
This is typically an indication that someone attempted to change the combination but missed a step during the process causing the combination chamber to be cleared. To resolve this issue, the combination chamber will need to be manually reset using the steps below.
- Q is the key override just to unlock the door in case a code is forgotten, or can it be used to loc... answer nowAsked by February 15, 2022 4:33 PMonA
The key override is just to unlock the door should there be an emergency or if the code isn't working. It does not lock it back.
- A
The handle on this model is field reversible and does not need to be ordered for a specific door orientation.
- A
This model is fully weatherproof and is perfect for outdoor applications!
- Q Being mechanical, does it work without batteries? answer nowAsked by September 30, 2020 1:58 PMonA
Yes! This lock requires no power to function and does not use any sort of battery or hardwired power source.
- A
Please feel free to check out our guide on changing the code on the Simplex 5000 series here: https://www.gokeyless.com/blog/kaba-simplex-5000-lock-change-code/
- Q Will the key override leave the door open if used? Looking for a secured entry that can also be l... answer nowAsked by August 11, 2020 11:37 AMonA
When the key is used, this will only temporarily unlock the door. This model does not have any passage mode capabilities. However, the Simplex 5041 does have the ability to be left unlocked by turning the interior knob. The Simplex 5041 can be found here: https://www.gokeyless.com/product/kaba-simplex-5041-keyless-lock/
- Q Does the Simplex 5021 come with lever for the outside and knob for inside of gate for security? O... answer nowAsked by August 3, 2020 3:16 AMonA
The Simplex 5000 model is typically ordered with either levers or knobs for both sides (the knob version can be found here).
For more information on availability with different knob styles, please contact our sales department at 937-247-9327, option 1!
Paul from Michigan –
We have been using the Simplex 5021 model keypad in our food processing operation for more nearly two years now. With my previous brand’ a Codelocks 500′ I was replacing part of the lockset about every six months in my high-traffic area. I have not needed to repair or replace my first 5021in that same area in 22 months. I’ve outfitted my plant with 5021s throughout. No regrets.
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Sean from Indiana –
GoKeyless.com shipped fast products are as advertised will defintely oprder for all my keyless needs from now on.
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Logan and Gold~s Gym –
The lock we purchased is working great. It is much easier to use and change the code on than the on the one we replaced. Thank you for all the help.
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Sean from Indiana –
The Kaba Simplex 5021mechanical keyless lock is a perfect for applications that get a lot of use. We install these on apartment buildings’ climate controlled storage units and offices with security zones. I have been using these locks for years without any issues that are common with mechanical locks that get heavy use. Also a key feature is that it is left and right field configurable as opposed to many other mechanical locks. Very heavy duty locks and gokeyless.com has them at a great price.
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Pat from North Carolina –
The simplex 5021 is a great product. I install a lot of pool fences and this has been a great way for my clients to have keyless entry for their community pools. Thank you for suppling a great product’ service’ and fast shipments.
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Jaime, Information Technology Officer, Texas –
I purchased two of these simplex 5021. I had never bought these models nor had I installed these before and it was my first purchase from GoKeyless.com. I was skeptical’ but not anymore. These were simple to install and configure with easy to follow instructions. They are very sturdy. I installed them on the Banks teller area. There is daily traffic. Of the two’ one malfunctioned after about 2 or 3 months of installation. I called Gokeyless and told them about it. They told me what to do and where to call for the manufacturer warranty. I couldn?t be happier with GoKeyLess and the simplex guys. They were nice and quick to replace my malfunctioning door lock. It?s been 6 months now and still working just fine.
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Volkan from New York –
Works perfectly
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Paul from Michigan –
The Simplex 5021 performs well in our food facility. We have replaced several other locks of a different brand with this model with great results. Appreciate the feature that the lock doesnt have to be disassembled to change the code. Well buy it again.
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Everett from New Jersey –
We have had our Simplex 5021 installed and in use for several months now and it has performed flawlessly. It is exactly as advertised and as your representatives described. We are very happy with it and have recommended to several other owners in our oceanside complex. I would highly recommend it and would not hesitate to purchase it in the future.
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Nicole, Prescott, WI –
Our new lock is working great. We are a child care center and we use it as a security enterance for all of our families. We have been in this building for 3 years now and this is our 4th lock we have tried (this is the first one from your company). It is nice and heavy duty – it is also nice that it is not electronic as that seems to be where our problems were coming from in the past. So’ needless to say we are very happy with our purchase.
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