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Medco M4 cylinders are UL Standard 437 listed for physical strength and high security, with solid brass machined construction and strategically placed hardened-steel inserts to thwart drilling attacks. In addition to tumbler pins that lift and rotate, the M4 design includes four side pins: three finger pins and  one lift pin, which must all interact with the sidebar to open, providing a high level of pick resistance.


Contact FacilitiesNet Editorial Staff »   posted on: 6/21/2021

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