Sargent & greenleaf 8077 combination padlock lock

Sargent & greenleaf 8077 combination padlock lock

Sargent & Greenleaf doesn't make ordinary padlocks. You won't find them hanging on racks at the neighborhood hardware store.
These are specialized locks, designed for high security applications or resistance to extreme weather conditions. S&G has supplied the world's most rugged padlocks to the US Government for decades and designed to meet stringent US Government specifications, widely used in US and Canadian Federal agencies and military facilities. From munitions bunkers, CIA, FBI, prison to file cabinets containing sensitive information, the name on the padlock has been Sargent & Greenleaf.
CASE HARDENED STEEL 8077(A, AB, AC or AD) PADLOCKS
One (1) cm thick die cast back plate. Meets military spec. FF-P110F for safeguard of classified info Built to conform to stringent government specifications, including 30 minute protection against expert manipulation, 39 minute protection against radiographic attack, and 10 minute protection against surreptitious entry attack. Field changeable combination with the use of a change key.125,000 possible combinations
Shackle material: case hardened steel
Shackle diameter: 5/16" (8 mm)
Clear shackle opening when locked: 7/8" (22 mm)
Overall dimensions: 4 5/32" (10.6 cm) high
http:// /pdf/630-159_630-278_8077_pad.pdf
This is the best, most solid and secure padlock in the world that has the same safety setting/mechanism as the bank safe. It will last you a lifetime.