Master Lock Magnum Padlocks with BumpStop Technology - Keyed Alike, 2 Shackle

Introducing BumpStop TECHNOLOGY - Lock bumping, a surprisingly simple method of breaking through locked doors and padlocks, is undeniably the newest emerging threat to personal property security. Virtually all locks in use today are particularly vulnerable to bumping, until now. BumpStop Advanced Cylinder Technology features an innovative, patent-pending design that utilizes a unique reverse rake tapered driver pin, high-performance springs, and tightly machined cylinder chambers. This design prevents the transfer of force from the bump key to the pins during a bump attempt, blocking rotation of the cylinder to keep the lock secure.

When purchasing, inquire about our quick delivery options, with the ability to have them in just a couple of days. Each pack includes four (4) locks keyed alike, with eight keys included. For a longer 2-1/2" (64mm) shackle version, search for M5NKALJSTS. These locks are equipped with BumpStop Advanced Cylinder Technology for enhanced security.

Please note, if you order two 4-packs, they may not be keyed the same. To ensure two 4-packs are keyed alike, you must order the 8-pack. Specifications include a 2" (51mm) wide laminated steel body for superior durability, and a 1-1/2" L (38mm) x 3/8" thick octagonal BORON CARBIDE shackle that is 50% harder than hardened steel.

For added security in outdoor, corrosive, and caustic environments, the COMMERCIAL MAGNUM series offers a higher level of weatherability. It includes a stainless steel body cover and top and bottom plates for exceptional weather protection, as well as a chrome-plated shackle for excellent rust resistance. Additionally, the locks feature superior pry resistance with dual-ball bearing locking mechanisms.

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