Master Lock was founded by Harry Soref in 1921 and has developed into a globally recognised name in padlocks and practical security. Its early growth was built around durable lock construction for personal, commercial and institutional applications.

The company introduced its first combination lock in 1935 and had become the largest padlock manufacturer in the United States by 1950. Later milestones include a resettable combination lock in 1982, TSA-accepted travel locks in 2004 and a Bluetooth-enabled padlock in 2015.

The current range includes keyed and combination padlocks, weather-resistant and high-security options, cable and chain solutions, lock boxes and products for travel, storage, gates, workplaces and equipment. Choosing a lock requires consideration of shackle dimensions, body material, environment, access method and the value and exposure of the item being protected.

Power-Hub carries Master Lock across security, storage and access-control categories. The live ranking below highlights the strongest parts of the current catalogue, while five featured products provide a practical introduction.