Lockey Extension Kit for Thick...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$38.64
Lockey Lockey - Extension Kit - Thick Door Kit - For 2000 / 3000 / C / M Series Locks Up To 5" LK-EXTKIT-2000

Lockey Extension Kit for Thick Doors - 2000/3000/C/M Series - Up to 5" Door Thickness

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Model: LK-EXTKIT-2000

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

$38.64
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Lockey Extension Kit for Thick Doors - 2000/3000/C/M Series - Up to 5" Door Thickness

Professional Extension Kit for Thick Door Applications

The Lockey Extension Kit enables installation of Lockey C-Series, M-Series, 2000 Series, and 3000 Series keyless locks on doors or gates up to 5" thick. This specialized extension kit provides the additional hardware needed to accommodate thick door applications while maintaining the security and functionality of compatible Lockey keyless entry systems.

Professional Features & Benefits

  • Thick Door Compatibility: Designed for doors and gates up to 5" thick, expanding installation options for specialized applications.
  • Universal Series Compatibility: Works with Lockey 2000, 3000, C-Series, and M-Series keyless locks for versatile installation flexibility.
  • Complete Extension Solution: Provides all necessary components to extend lock functionality to thick door applications.
  • Professional Installation: Engineered for reliable performance in commercial and residential thick door installations.
  • Durable Construction: Built to maintain the security integrity of the parent lock system in demanding applications.

Technical Specifications

  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Product Group: Parts and Accessories
  • Product Subgroup: Parts and Accessories
  • Product Type: Extension Kits

Professional Applications

  • Commercial Building Thick Door Installations
  • Industrial Facility Heavy-Duty Doors
  • Warehouse and Distribution Center Security
  • Multi-Unit Residential Gate Applications
  • Educational Institution Specialized Doors
  • Healthcare Facility Security Doors

Why Choose Lockey Quality?

Lockey extension kits deliver professional-grade compatibility solutions engineered to maintain the security and reliability of your keyless entry system. Designed specifically for thick door applications up to 5" where standard installation hardware is insufficient, ensuring dependable performance in specialized commercial and residential installations.

Manufacturer Resources

Lockey USA Lock Catalog

Product Specs

Product Type:
Extension Kits
Commercial/Residential:
Commercial
Product Group:
Parts and Accessories
Product Subgroup:
Parts and Accessories
Department:
Door Hardware

Lockey LK-EXTKIT-2000 – Frequently Asked Questions

1) Which Lockey lock series does the LK-EXTKIT-2000 thick door kit work with?
Four families: the Lockey 2000 Series, 3000 Series, C-Series and M-Series keyless mechanical locks. If your lock is one of those, the extension kit is the part that takes it out to a thick door or gate. A Lockey model outside those four series is not covered by this kit.
2) Do I need an extension kit for a standard 1-3/4 inch commercial door?
No. The Lockey thick door extension kit is for doors and gates thicker than the lock's own standard range, out to 5 inches. A 1-3/4 inch commercial door, or the 1-3/8 inch leaf common on older interior openings, is ordinary thickness and the lock's factory hardware handles it. Order the kit only when the leaf, gate frame or added cladding pushes past what the lock ships to cover.
3) I have a Lockey lock on a chain link gate with a thick backing plate. Can I still use it?
That is the case this kit exists for. Gate installs often add material behind the lock (a backer plate, a wood or composite panel, a welded frame section) and push the effective thickness well past what the lock's stock spindle and screws reach. The LK-EXTKIT-2000 extends a 2000, 3000, C or M Series Lockey lock across a total thickness up to 5 inches. Measure the full stack, front face to back face, including any plate, and if it lands at 5 inches or under this kit covers it.
4) Is the Lockey thick door extension kit a lock, or do I buy the lock separately?
It's hardware only, not a lock. The kit supplies the components that let a Lockey keyless lock you already own (or are buying alongside it) mount on a thicker opening. You still need the lock itself, from the 2000, 3000, C or M Series. Buying this kit by itself gets you nothing to install on the door.
5) Is there more than one Lockey thick door kit, or is it one part number for all four series?
One part covers all of them. LK-EXTKIT-2000 is the single ordering choice, and it handles the 2000, 3000, C and M Series alike. There's no series-specific version to sort out and nothing to specify beyond the kit itself.
6) Can I standardize on one Lockey keyless lock across normal doors and thick gates in my facility?
You can. Spec the same 2000, 3000, C or M Series Lockey lock throughout, then add the LK-EXTKIT-2000 only on the openings that run thick, up to 5 inches. Same lock, same keypad and same code procedure on every opening; the extension kit is just extra mounting hardware on the handful of thick ones. That keeps one product to train staff on and one part to stock.
7) Is the Lockey extension kit rated for commercial use or is it a residential part?
Commercial. Lockey classifies it as a commercial door hardware item, and the thick door situations it addresses (industrial and warehouse leaves, institutional openings, multi-unit gates) are commercial by nature. It's used on residential gates too, but the build target is commercial duty.
How fast can I get the Lockey LK-EXTKIT-2000 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 Lockey LK-EXTKIT-2000 come with a warranty?
Absolutely. The Lockey LK-EXTKIT-2000 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 Lockey LK-EXTKIT-2000?
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 Lockey LK-EXTKIT-2000 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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