Solid Steel Maximum Security Padlocks

These solid steel padlocks — with the largest lock bodies and shackles to best withstand physical attack — are virtually indestructible, with hardened, chrome plated solid steel bodies that resist cutting, sawing and corrosion; hardened boron alloy steel shackles for superior cut resistance; and stainless steel cylinder pins for increased drill resistance.

Hardened stainless steel serrated pins increase the drill and pick resistance of the rekeyable five- and six-pin brass cylinders. The dual ball bearing locking mechanisms resist pulling and prying.

Enhanced keying option includes BumpStop® Advanced Cylinder Technology.

Includes A780, A784 and A790, with specifications listed below.

American Lock - Build Your Own Solid Steel Maximum Security Padlocks

Specifications for Maximum Security Padlocks

Back to top

BumpStop® Advanced Cylinder Technology

BumpStop® Advanced Cylinder Technology is the default cylinder in all American Lock Government security products provide resistance to Bump attacks. These specifications are based on ASTM F883-09, ASTM International testing criteria for determining a pin tumbler padlock cylinder’'s ability to effectively resist break–ins using lock bumping techniques. BumpStop® cylinders have a reverse rake tapered driver pin, high performance spring and precision tolerance chamber, available in our 4–, 5– and 6–pin products. American Lock padlocks with BumpStop® Technology resist bump attacks.

For more information please view the BumpStop® video below or visit the BumpStop® Security website.

Download Video

Right Click Right-click on the 'Download Video' link to save the video (MP4 format) to your computer.