Master Lock 410S6BLK Lockout Padlock, Keyed Different, Thermoplastic, Black

Master Lock 410S6BLK Lockout Padlock

This Master Lock 410S6BLK padlock uses a black thermoplastic body that resists chemicals and is non-conductive. It has a metal open shackle measuring 1/4 in diameter with 1 1/2 in vertical clearance. The keyed-different cylinder means each lock requires its own key and the key cannot be removed while the shackle is open. The lock body is 1 3/4 in high and 1 1/2 in wide with a danger header printed on the front.

Who this suits and who should look elsewhere

The lock is built for lockout-tagout procedures where non-conductive, chemical-resistant hardware is required. It suits maintenance teams needing one unique key per padlock for individual accountability. Buyers who need multiple locks opened by a single key should choose a keyed-alike set instead. Those requiring a removable key or a shackle that closes automatically will need a different design.

Behaviour under sustained use

The thermoplastic body maintains its chemical resistance and non-conductive properties during repeated exposure to industrial solvents and electrical environments. The metal shackle withstands repeated locking cycles without deformation. The non-removable key feature prevents accidental key loss during extended lockout periods. The danger header remains legible after prolonged outdoor or indoor use.