Master Lock 6121NKALJ ProSeries 2-1/8" Weather Tough Laminated Steel Rekeyable Pin Tumbler Padlock 2-1/2" Shackle Lock Bumping

ProSeries® Weather Tough® Covered Laminated Padlock, Keyed Alike - multiple locks open with the same key - features a 2-1/8in (54mm) wide heavy steel body to withstand physical attack and a 2-1/2in (64mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistance. The exclusive cover protects this padlock from harsh elements & a high security, rekeyable 5-pin cylinder with spool pins is virtually impossible to pick.

Lock bumping has become a recognized method of violating most in-line pin tumbler cylinders. In response, The Master Lock Company stepped forward to create a revolutionary new lock cylinder that provides excellent protection against lock bumping, as established in the ASTM Standard F883-09. BumpStop® solution employs an innovative, patent-pending design which utilizes a unique reverse-rake tapered driver pin, high-performance springs, and precision-tolerance chambers. During a bump attempt, this solution prevents the transfer of force from the bump key to the pins and blocks rotation of the cylinder - so the lock stays locked.

Features:

• Keyed Alike - order multiple locks to open with the same key or order to match other locks with the W6000 cylinder
• Ideal for harsh outdoor conditions - exclusive ProSeries® Weather Tough® cover protects lock from water, ice, dirt and grime
• ProSeries® Padlocks are designed for Commercial/Industrial applications
• 2-1/8in (54mm) heavy steel body withstands physical attack
• 2-1/2in (64mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for maximum cut resistance
• Dual ball locking mechanism resists pulling and prying
• High security, rekeyable 5-pin cylinder with spool pins is virtually impossible to pick
• Lock bumping solution BumpStop®