Lockey C120 Mechanical Surface...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$161.65
$103.14
Lockey C120 Mechanical Surface Mount Digital Keyless Combination Lock with 3/4" Throw

Lockey C120 Mechanical Surface Mount Digital Keyless Combination Lock with 3/4" Throw

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Model: C120-SN
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$161.65
$103.14
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Lockey C120 Mechanical Surface Mount Digital Keyless Combination Lock with 3/4" Throw

Professional Mechanical Keyless Entry Solution

The Lockey C120 Mechanical Surface Mount Digital Keyless Combination Lock provides reliable keyless entry with a 3/4" throw deadbolt for doors ranging from 1-1/8" to 2" thick. This low-profile mechanical lock features exterior dimensions of 5" L x 1-1/8" W x 1-3/4" D and interior dimensions of 5" L x 1-1/8" W x 1-3/8" D. The reversible long/short bar design accommodates various installation requirements, while the single user code configuration provides straightforward access control for light-duty commercial applications.

Professional Features & Benefits

  • Versatile Door Compatibility: Accommodates door thickness from 1-1/8" to 2" standard, with optional kits extending compatibility to doors 1/8" thick and up to 5" thick for maximum installation flexibility.
  • Compact Low-Profile Design: 5" L x 1-1/8" W x 1-3/4" D exterior dimensions provide secure deadbolt operation without excessive door surface requirements.
  • Mechanical Operation: No electrical power required ensures reliable operation in all conditions without battery maintenance or power supply concerns.
  • Reversible Bar Configuration: Long/short bar reversibility allows adaptation to various door configurations and operational requirements.
  • Single User Code: Straightforward programming and operation with one user code for controlled access management.
  • Compatible Accessories: Works with C-25 Pull Handle (sold separately) for enhanced functionality and ergonomic operation.
  • Multiple Finish Options: Available in Antique Brass, Bright Brass, Jet Black, Marine Grade, Oil Rubbed Bronze, Satin Chrome, Satin Nickel, and White finishes to match architectural requirements.
  • Light-Duty Applications: Engineered specifically for light-duty commercial and residential applications where reliable keyless access is required.

Technical Specifications

  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Door Thickness Range: 1-1/8" to 2"
  • MAP Policy: Yes
  • Product Category: Mechanical Locks
  • Product Dimension: 5" L x 1 1/8" W x 1 3/4" D
  • Product Group: Mechanical Locks
  • Product Subgroup: Mortise Locks and Trim
  • Product Type: Keyless Combination Lock
  • Subcategory: Mechanical Push Buttons

Professional Applications

  • Small Commercial Office Spaces
  • Residential Entry Doors
  • Storage Room Access Control
  • Light-Duty Commercial Applications
  • Utility Room Security
  • Secondary Entry Points
  • Maintenance Area Access

Why Choose Lockey Quality?

Lockey mechanical keyless locks deliver dependable access control with robust mechanical construction designed for consistent operation without electrical dependencies. The C120 features precision-engineered components with multiple finish options to match diverse architectural requirements. Engineered for light-duty applications where reliable keyless entry and straightforward operation are essential for daily use.

Manufacturer Resources

Lockey USA Lock Catalog

Product Specs

Product Group:
Mechanical Locks
Product Subgroup:
Mortise Locks and Trim
Product Type:
Keyless Locks
Subcategory:
Mechanical Push Buttons
Commercial/Residential:
Commercial
MAP Policy:
Yes
Door Thickness Range:
1-1/8" to 2"
Product Dimension:
5" L x 1 1/8" W x 1 3/4" D
Product Category:
Mechanical Locks
Department:
Door Hardware

Lockey C120-SN – Frequently Asked Questions

1) Will the Lockey C120 keyless lock fit a 1-3/4 inch commercial door?
Yes. The C120 covers doors from 1-1/8 inch to 2 inch thick as supplied, so a standard 1-3/4 inch commercial door is in the middle of the range with no extra parts. Outside that band, Lockey offers kits that take the lock down to doors as thin as 1/8 inch and up to 5 inch thick.
2) Is the Lockey C120 a mortise lock or does it mount on the door surface?
It mounts on the surface. The C120 is a rim/surface mount deadbolt: the lock body sits on the face of the door and the bolt throws into a strike on the frame, so there is no mortise pocket to cut. That makes it a far shorter install than a mortise unit, which is why it turns up on storage rooms, utility rooms, and secondary entries.
3) Will the Lockey C120 deadbolt reach my existing strike?
The bolt throws 3/4 inch. On a standard door-to-frame gap that lands in a surface-mounted strike, and the strike is set to suit the bolt rather than the other way round, so plan on mounting the strike that ships with the lock rather than reusing an old mortise deadbolt strike, which is prepped for a longer 1 inch throw.
4) Does the Lockey C120 need batteries or wiring?
Neither. It is fully mechanical, so there is no power supply, no wiring run, and no battery to change. Code entry and bolt operation are driven by the pushbuttons alone, which is why it holds up on exterior gates, unheated storage, and any opening where you do not want to pull power. For a property manager running dozens of doors, that removes battery replacement from the maintenance schedule entirely.
5) Can the Lockey C120 be installed on a left hand or right hand door?
Handing is not a separate part number here. The C120 uses a reversible long/short bar, so the same lock is set up for either swing during installation. Order the finish you want and set the bar at the door.
6) How many user codes does the Lockey C120 hold?
One. A single user code is shared by everyone who gets through the door. That works for a maintenance closet or a small office where the same people come and go, but if you need to give each tenant or trade a distinct code, or to pull one person's access without recoding for everyone, a single code lock is the wrong tool for the job.
7) Is the Lockey C120 heavy duty enough for a high traffic entrance?
No. Lockey rates the C120 for light-duty commercial and residential use, so it suits a storage room, a utility area, a small office, or a secondary entry. A main entrance cycling hundreds of times a day is more than this lock is built for, and it should be handled by a heavier keyless or mortise unit.
8) How much surface does the Lockey C120 take up on the door face?
The exterior housing measures 5 x 1-1/8 x 1-3/4 inches and the interior side is 5 x 1-1/8 x 1-3/8 inches. That narrow 1-1/8 inch width is what lets it go on doors with limited flat area beside the glass or the frame, and the 1-3/4 inch exterior depth is what projects off the face once it is mounted.
9) What finishes does the Lockey C120 come in, and is there one for a coastal or exterior door?
Eight: Antique Brass, Bright Brass, Jet Black, Marine Grade, Oil-Rubbed Bronze, Satin Chrome, Satin Nickel, and White. Marine Grade is the one to specify for salt air or a heavily exposed exterior opening; the rest are architectural finishes for matching what is already on the other doors.
10) Is there a pull handle available for the Lockey C120?
Yes, the C-25 pull handle, and it is sold separately. The lock itself gives you code entry and the bolt; if the door has no other hardware to grab, budget the C-25 into the same order or the opening will have nothing to pull on.
How fast can I get the Lockey C120-SN 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 C120-SN come with a warranty?
Absolutely. The Lockey C120-SN 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 C120-SN?
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 C120-SN 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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