The Master Lock 1178D ProSeries® 4-Digit Padlock has a strong and durable die-cast zinc body with octagonal boron carbide alloy shackle, which gives the lock superior protection against forced removal by cutting. The resettable 4-digit lock ha...

The Master Lock Excell™ Discus Combination Padlocks are made with cutting edge technology to deliver unprecedented security. They feature tough cut patented octagonal boron carbide shackles which are 50% tougher to cut than hardened steel.

The Masterlock Pro Series™ Shrouded Shackle Padlock range is designed to endure the toughest security applications by providing extra protection against corrosion, abuse and attack. They have tough boron alloy shackles, dual ball bearing loc...