The Asec sliding shackle padlock is designed to be robust and have a high resistance to attack. The key provided will work on more of the same product. It is ideal for shutter or link chain applications where security is an issue.
 
Features
Ideal for use on commercial premises
Revolving shackle resists sawing attacks
Also know as a block lock or anvil padlock
Hardened steel horizontal shackle
Solid metal body
Various body widths available