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    • Medeco

    Medeco High-Security Cores, Cylinders & Keys

    High-Security Cores In Stock | Ships from the USA | Expert Technical Support

    Medeco ordering trips up even experienced buyers: Biaxial, Medeco3, or KeyMark? 00, DL, G3, or 8E keyway? Combinated, uncombinated, or sub-assembled? Order the wrong one and you own a core your keys will never enter. Call 877-365-5625 before you guess — tell us what system you have and we will put the right core in the cart.

    Medeco has been the default answer to "I need a lock nobody can pick and a key nobody can copy" since 1968. Made in Salem, Virginia, and owned by ASSA ABLOY since 1998, Medeco built its name on one mechanical idea: pins that have to rotate, not just lift. A standard pin tumbler opens when its pins reach the right height — which is exactly what picks, rakes, and bump keys exploit. A Medeco key has angled cuts that must also twist each chisel-tipped pin to the correct angle before a sidebar releases. An attacker has to solve both problems on every pin at once, which is why these cylinders carry the UL 437 high-security listing and sit on government, hospital, and university spec sheets across the country.

    The other half of the story is key control. Medeco blanks are patent-protected and restricted — nobody copies your key at a kiosk. For a facility, that means the key count you authorized is the key count that exists.

    What we stock: interchangeable cores, both formats

    Lock Depot carries Medeco's high-security interchangeable cores — the part that drops into hardware you already own and upgrades the whole opening without touching the lockset.

    SFIC cores — 6-pin and 7-pin

    The figure-eight core that swaps with a control key in seconds, compatible with BEST, Falcon, Arrow, and other SFIC-format housings. If your building runs SFIC hardware and you want high security on the openings that matter — server rooms, pharmacies, master suites — a Medeco SFIC core is a five-second swap, no locksmith visit for the change itself. We stock the Biaxial 6-pin SFIC core (336B010-26-ACBS), the Medeco3 7-pin SFIC core (337B010-06-TDBS), and the KeyMark 6-pin SFIC core (33600007K-26-8ES), across multiple Best-compatible keyways in satin chrome and satin brass.

    LFIC cores — 31 and 32 series

    The heavier large-format core for institutional systems. The 310100 series (310100T-26-DLQ) retrofits Yale LFIC housings; the 320201 series Biaxial (320201-26-00P) and 320201 Medeco3 in DL keyway (320201T-26-DLT) fit Medeco-format housings. On a campus or hospital with hundreds of keyed openings, LFIC's heavier build is the right call — it is built for the cycle counts an SFIC core was never meant to see.

    SFIC or LFIC — the thirty-second answer
     SFICLFIC
    FitsBEST, Falcon, Arrow & other SFIC housingsYale housings (31 series) or Medeco-format housings (32 series)
    SwapControl key, seconds, no toolsControl key, manufacturer-specific format
    BuildCompact, standardizedHeavier, longer service life
    Best forMixed-brand buildings, frequent rekeysLarge institutional master key systems

    Combinated, uncombinated, sub-assembled — order the right state

    This is where Medeco orders go wrong. Combinated means the core arrives pinned and ready, keys cut to it. Uncombinated means it arrives unpinned — your locksmith pins it to your existing system. Sub-assembled sits in between: partially built, finished by a Medeco-equipped shop. If you are adding cores to a system you already run, uncombinated or sub-assembled keeps your bitting in your locksmith's hands. If this is opening one of a new system, talk to us first.

    One more decoder note: Biaxial, Medeco3, and KeyMark in our product titles are key platforms, not quality tiers. Your existing keys decide the platform — a Medeco3 key will not run a Biaxial core. Match what your system already uses.

    Frequently asked at the counter:

    Will a Medeco SFIC core fit my BEST hardware? Yes — Medeco SFIC cores use the standardized figure-eight format and drop into BEST, Falcon, Arrow, and other SFIC housings. Match the pin count (6 or 7) to your housing.

    Can anyone copy a Medeco key? No. Blanks are patent-protected and restricted to authorized dealers with verified authorization. That restriction is the product as much as the brass is.

    Does Medeco make deadbolts and padlocks too? They do — the Maxum deadbolt, several padlock lines, and the CLIQ electronic key system. We stock the core lines; call us about anything in the broader Medeco catalog.

    6-pin or 7-pin? Whatever your housing and key system are built for. Count the pin chambers or check your existing cores — mixing lengths in one system creates keys that work some doors and not others.
    Confused by keyways and core states? Talk to a Human.
    Staring at a cart wondering if 00 keyway combinated is the same thing your building runs? Don't order twice. Call 877-365-5625 — no automated phone trees, just someone who has pinned these cores. We will confirm platform, keyway, pin count, and core state against your existing system before you buy.
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