Medeco X4 Small Format Interch...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$95.00
$49.53
Medeco Medeco X4 Small Format Interchangeable Core, KeyMark, 8E Keyway MED-X4SFIC

Medeco X4 Small Format Interchangeable Core, KeyMark, 8E Keyway

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Model: MED-X4SFIC
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$95.00
$49.53
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Medeco® X4 Small Format Interchangeable Core (SFIC) – 8E Keyway | KeyMark® X4 System

The Medeco X4 Small Format Interchangeable Core (SFIC) offers utility-patented key control in an easily manageable, high-security package—ideal for organizations with frequent personnel changes or evolving security needs. Designed for fast and efficient core replacement using a control key, the Medeco KeyMark X4 system enables non-technical personnel to "re-key" locks instantly, eliminating the cost and delay of locksmith services.

Engineered for maximum versatility and control, Medeco KeyMark® X4 cores are fully compatible with existing SFIC hardware from other manufacturers and are the ideal upgrade where key duplication security is critical but a UL437 listing is not required.

Ideal For

  • Fast food chains

  • Retail and convenience stores

  • Apartment complexes

  • Hospitals and schools

  • Office buildings and commercial properties

Key Features

  • Rapid Core Change: Re-key locks instantly using a control key—no need to disassemble the lock

  • Solid Brass Construction: Built for long-term durability

  • Spool-Shaped Top and Bottom Pins: Enhanced pick resistance

  • Nickel Silver Bottom Pins: Increased wear resistance and lifespan

  • Individual Pin Chamber Caps: Simplifies servicing and reconfiguration

  • Fully keyed alike, keyed different, or master keyed based on your security structure

Key Control

  • Medeco X4 key blank system offers utility patent protection against unauthorized duplication

  • KeyMark X4 design ensures that key control remains with authorized personnel or institutions

  • Compatible with Medeco’s broader KeyMark® high-security ecosystem

Finish Options

  • 05 – Bright Brass

  • 06 – Satin Brass

  • 09 – Antique Brass

  • 10 – Satin Brass Blackened

  • 11 – Bright Bronze

  • 12 – Satin Bronze

  • 13 – Oil Rubbed Bronze

  • 18 – Bright Nickel

  • 19 – Satin Nickel

  • 20 – Antique Nickel

  • 22 – Black

  • 24 – Dark Bronze

  • 25 – Bright Chrome

  • 26 – Satin Chrome

Applications

  • Retrofit solution for existing SFIC systems from other brands

  • Perfect for institutions and businesses that demand quick rekeying with strict key duplication cont

Manufacturer Resources

Product Specs

Product Group:
Parts and Accessories
Product Subgroup:
Cylinders
Product Type:
Keyway
Subcategory:
Small Format Interchangeable Core
Compatibilty:
Schlage
Commercial/Residential:
Commercial
Tags:
medeco x4, medeco x4 key blank, medeco keymark, medeco keymark x4
Product Category:
Parts and Accessories
Product Substrate:
Brass

Medeco MED-X4SFIC – Frequently Asked Questions

1) What is the Medeco X4 Small Format Interchangeable Core used for?
The X4 SFIC provides maximum security for commercial door hardware. It fits standard small format interchangeable core prep in knobs, levers, deadbolts, and padlocks. Designed for high-security applications requiring removable cores.
2) Does this core work with existing SFIC hardware?
Yes, the X4 core fits standard SFIC housing prep. Compatible with most commercial grade door hardware accepting small format cores. Verify your hardware accepts standard SFIC dimensions before ordering.
3) What hand or orientation options are available?
SFIC cores are typically universal for hand orientation. The core installs the same regardless of door hand. Cam orientation may vary based on your specific hardware application.
4) What finish does this core have?
Core finish varies by model. The visible portion matches common architectural finishes. Check product specifications for exact finish or contact us to confirm finish compatibility with your hardware.
5) What security grade does the X4 core provide?
Medeco X4 cores offer high security performance with drill resistance and pick protection. Suitable for applications requiring maximum security. Consult security requirements for your specific project needs.
6) How is the 8E keyway different from other keyways?
The 8E keyway is a specific Medeco profile that determines key compatibility. Each keyway accepts only matching key blanks. Verify your existing system keyway before ordering to ensure proper key operation.
7) What parts come with the core?
Cores typically include the cylinder assembly and cam. Control key and operating keys sold separately. Verify included components and key quantities needed for your installation.
8) How do you install an SFIC core?
Insert control key and turn to remove existing core. Insert new X4 core with control key inserted. Turn control key to lock position and remove. Test operation with user keys before completing installation.
9) Do X4 cores require special maintenance?
Use graphite lubricant only in high-security cylinders. Avoid oil-based lubricants that attract dirt. Clean keyway periodically with compressed air. Schedule regular inspection for high-traffic installations.
10) Are there similar Medeco core options available?
Medeco offers various SFIC cores in different keyways and configurations. Browse our Medeco products for alternative cores and matching hardware options.
11) What door weight and thickness does this support?
Core weight capacity depends on the door hardware housing, not the core itself. Verify your door hardware specifications for weight and thickness limits. Standard commercial hardware supports most door applications.
12) What dimensions should I verify before ordering?
Confirm your hardware accepts standard SFIC cores. Check existing keyway marking to match the 8E specification. Verify cam orientation requirements for your specific door hardware application.
How fast can I get the Medeco MED-X4SFIC 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 Medeco MED-X4SFIC come with a warranty?
Absolutely. The Medeco MED-X4SFIC 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 Medeco MED-X4SFIC?
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 Medeco MED-X4SFIC 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.

Product Reviews

  • 5
    Very good quality cores

    Posted by C I on Apr 23rd 2025

    Excellent cores. Key turns in them very very smoothly. I like that the pins are made of hardened metal, increasing the lifespan of each key core. Very nice design and high quality product ZenSupply stayed in touch with me the whole time and ensured I get these locks as soon as possible. Thank you! Exce

!