Master Lock High Security Padlocks

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 a set of 10 Keyed Alike professional series padlocks and is ideal for all outdoor applications when needing multiple locks that utilize ONLY one key. The same key opens all locks. Each lock comes with two keys, therefore you will receive a total of 20 keys with the purchase of this 10 pack.

The Master Lock No. 6127NKALH ProSeries Weather Tough Covered Laminated Padlock features a 2-5/8in (67mm) wide heavy steel body to withstand physical attack and a 1-7/8in (48mm) tall, 7/16in (11mm) diameter hardened boron alloy shackle for superior cut resistance.  The exclusive cover protects this padlock from harsh elements & a high security, re-keyable 5-pin cylinder with spool pins is virtually impossible to pick. The single keyed alike lock can also be purchased with multi packs to help when attaining various quantities.