Master Lock Magnum Padlock

Lock bumping a surprisingly simple method of breaking in through locked doors and padlocks - is undoubtedly the newest emerging threat to personal property security. And virtually all locks in use today are particularly vulnerable to bumping. Until now.

BumpStop™ Advanced Cylinder Technology employs an innovative, patent pending design which utilizes a unique reverse rake tapered driver pin, high performance springs and tightly machined cylinder chambers. During a bump attempt, this design prevents the transfer of force from the bump key to the pins and therefore blocks rotation of the cylinder so that the lock remains locked.

This is one (1) Keyed Alike padlock and two keys. You may use this single keyed alike lock to match up to other 4-pin locks. It's ideal for all outdoor applications.  Each lock comes with two keys, therefore you will receive a total of four keys with the purchase of this 2 pack. 

You can order up to eight locks keyed alike. This style lock is also available in a 2-pack, 3-pack and a 4-pack. To purchase, visit our 2-pack store category, 3-pack store category. or 4-pack store category. To reach any desired quantity order a combination of 2-packs, 3-packs, 4-packs or single keyed alike lock necessary to attain the desired quantity.

For quantities greater than eight please inquire and we can have them in a couple of days.

PADLOCK FEATURES: Stainless steel body cover and top and bottom plates for exceptional weatherability. Keyed alike 2" (51mm) wide laminated steel body for superior durability. 2-1/2" (64mm) octagonal boron carbide shackle is 50% harder than hardened steel. Chrome-plated shackle for excellent rust resistance. Superior pry resistance with dual-ball bearing locking. Thousands of key changes maximize key integrity.