Master Lock’s® Armored Shackle Lock has a hardened steel shackle that defies cutting and a 1-9/16" laminated steel body for superior strength. It also has 4-pin tumbler cylinder that helps prevent picking while the shackle guard protects against bolt cutters and hacksaws. It can be used to secure trailers, cables, and chains, and it fits openings 1/2" diameter or larger with the shackle guard in place.
