Products

The Master Lock No. 468L Seal Tight™ Handle-Off Ball Valve Lockout Device features a universal fit to effectively lock out all valves from 3...

The Master Lock No. 479 is an accessory for a universal ball valve lockout system.

The Master Lock No. 480 Rotating Gate Valve Lockout Device features a 1-1/16in (30mm) depth and 3/4in (19mm) stem opening for 1in (25mm) to ...

The Master Lock No. 481 Rotating Gate Valve Lockout Device features a 1-1/2in (38mm) depth and 1-1/2in (38mm) stem opening for 2in (51mm) to...

The Master Lock No. 482 Rotating Gate Valve Lockout Device features a 1-7/8in (48mm) depth and 2-1/2in (64mm) stem opening for 4in (102mm) t...

The Master Lock No. 483 Rotating Gate Valve Lockout Device features a 2-3/4in (70mm) depth and 3-1/2in (89mm) stem opening for 6in (152mm) t...

The Master Lock No. 484 Rotating Gate Valve Lockout Device features a 3-3/8in (86mm) depth and 4in (101mm) stem opening for 8in (203mm) to 1...

The Master Lock No. 485 Rotating Gate Valve Lockout Device combo pack includes a set of five lockouts - 480, 481, 482, 483, 484. These gate ...

The Master Lock No. 487 Rotating Electrical Plug Lockout Device accepts cords with up to 3/4in (19mm) diameter and an electrical plug up to ...

The Master Lock No. 488 Rotating Electrical Plug Lockout Device accepts cords with up to 3/4in (19mm) diameter and an electrical plug up to ...

The Master Lock No. 490 used for locking out a fuse. The color red indicates "Lockout."

The Master Lock No. 491B Grip Tight™ Circuit Breaker Lockout Device fits wide or tall breaker toggles typically found on hi-voltage/hi-amper...

The Master Lock 492 used for locking out a circuit breaker. The color red indicates "Lockout."

The Master Lock No. 493B Grip Tight™ Circuit Breaker Lockout Device fits standard height and tie-bar toggles typically found on 120 and 240 ...

The Master Lock No. 494 used to lockout a 480 or 600 volt circuit breaker.

Master Lock No. 495 used as a multi-pole lockout device.

The Master Lock No. 496B Universal Wall Switch Cover locks out both toggle and Decora™ switches. The patented design ensures switch stays lo...

The Master Lock No. 497A Heavy Duty Safety Tags feature durable polyester laminate to resist water, grease and extreme temperatures. The hea...

The Master Lock No. 497A Heavy Duty French/English Safety Tags feature durable polyester laminate to resist water, grease and extreme temper...

The Master Lock No. 497A Heavy Duty English/Spanish Safety Tags feature durable polyester laminate to resist water, grease and extreme tempe...

The Master Lock No. 498A Latch Tight™ Portable Group Lock Box features a durable powder-coated finish with an easy-to-grip, ergonomic handle....

Pack of 4 The Master Lock No. 4D Laminated Padlock features a 1-9/16in (40mm) wide laminated brass body for maximum streng...

KEY NUMBER 2008 ONLY  The Master Lock No. 4KALH-2008 Laminated Brass Padlock, features a 1-9/16in (40mm) wide laminated brass body offering excell...

The Master Lock No. 5 Powder Coated Laminated Steel Padlocks are designed for robust security in industrial settings. Laminated Steel padlo...

Pack of 4 The Master Lock No. 500D Laminated Padlock features a 1-3/4in (44mm) wide laminated steel body for strength and ...

The Master Lock No. 503RED Latch Tight™ Group Lockout Box, red, accepts 14 padlocks or lockout hasps and can be mounted to the wall or carri...

The Master Lock No. 503YLW Latch Tight™ Group Lockout Box, yellow, accepts 14 padlocks or lockout hasps and can be mounted to the wall or ca...

The Master Lock No. 506 Grip Tight™ Circuit Breaker Lockout combo pack includes one 491B and one 493 Grip Tight™ circuit breaker lockout. Th...

Pack of 4 The Master Lock No. 5400D Portable Lock Box features a 3-1/4in (83mm) wide metal body for durability. The portab...

Pack of 4 The Master Lock No. 5401D Wall Mount Lock Box features a 3-1/4in (83mm) wide metal body for durability. The wall...

Pack of 2 The Master Lock No. 5406 Portable Lock Box features a 2-3/4in (70mm) wide metal body for durability. The...

Pack of 4 The Master Lock No. 5420D Portable Universal Lock Box features a 2-7/8in (72mm) wide metal body for durability. ...

Pack of 4 The Master Lock No. 5422D Portable Push Button Lock Box features a 3-1/8in (79mm) wide metal body for durability...

Pack of 4 The Master Lock No. 5423D Wall Mount Push Button Lock Box features a 3-1/8in (79mm) wide metal body for durabili...

Pack of 4 The Master Lock No. 5424D Portable Light-Up Dial Lock Box features a 2-7/8in (72mm) wide metal body for durabili...

Pack of 4 The Master Lock No. 5425D Wall Mount Light-Up Dial Lock Box features a 2-7/8in (72mm) wide metal body for durabi...