American Shrouded High Security Padlock

With a shrouded shackle for extra security, these rekeyable solid steel padlocks offer the greatest protection against cutting and prying attacks. They have hardened, chrome plated solid steel bodies that resist cutting, sawing and corrosion; hardened boron alloy steel shackles for superior cut resistance; and the A748 has stainless steel cylinder pins for increased drill resistance.

BumpStop® Advanced Cylinder Technology BumpStop® Advanced Cylinder Technology is the default cylinder in all American Lock Government security products to meet CID requirements and provide resistance to Bump attacks. These specifications are based on ASTM F883-09, ASTM International testing criteria for determining a pin tumbler padlock cylinder&rsquo'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 exceed Grade 6 lock bump test criteria.

Lock Body Size: 2-1/2” x 1”
Top to bottom 4"
Shackle Diameter: 7/16”
Shackle Height: 1”
Shackle Width: 15/16”
Weight: 2.33 lbs.


Body Material: Case hardened, chrome-plated solid steel
Application: High security