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Yellow steel padlock with hardened shackle, keyed different

Master Lock

Master Lock 1803 Yellow Steel Padlock Keyed Different

SKU CH-8MJG-WCDV4

Steel lockout padlock with a 3/4 in hardened-steel shackle and keyed-different cylinder for individual access control

  • TypeMechanical Push Button
  • Pry-resistant steel body withstands forced entry
  • Hardened steel shackle resists cutting attacks
  • Keyed-different cylinder provides unique access control
  • Yellow finish enables quick visual identification
  • Compact 3/4-inch shackle fits tight hasps

Fortress 1803 Yellow Steel Padlock

The Fortress 1803 is a yellow steel lockout padlock designed for safety isolation procedures. It suits maintenance teams and facility managers who need a durable, keyed-different device for energy-control programs. The hardened steel shackle and steel body resist physical attack in industrial environments.

Check keying and shackle fit before ordering

Each padlock is supplied keyed different so every unit opens with its own unique key. Verify that a 5/16 inch shackle diameter and 3/4 inch vertical clearance match the hasp or lockout point on your equipment. Confirm the 15/16 inch body thickness and 1 9/16 inch width allow the lock to sit flush on your designated isolation points.

Steel body and hardened shackle withstand daily

The yellow steel body and hardened steel shackle combine pry-resistant construction with high visibility for quick identification. An open shackle design speeds attachment and removal during shift changes. The non-removable key feature prevents accidental key loss while the lock remains secured on a circuit breaker or valve.

Highlights

  • Pry-resistant steel body withstands forced entry
  • Hardened steel shackle resists cutting attacks
  • Keyed-different cylinder provides unique access control
  • Yellow finish enables quick visual identification
  • Compact 3/4-inch shackle fits tight hasps

Specifications

BrandMaster Lock
TypeMechanical Push Button

Questions about this item

Does the 1803 yellow steel padlock ship with keys or do I need to order them separately?

The lock is keyed different, so two keys are supplied with each padlock and no separate key purchase is required.

Should I choose the 3/4 in shackle clearance version or a longer shackle for my lockout points?

This model provides 3/4 in horizontal and vertical shackle clearance; select it when your hasp or chain links fit within that gap, otherwise a longer-shackle variant is needed.

What does the 5/16 in hardened-steel shackle diameter mean for resistance to bolt cutters?

A 5/16 in hardened-steel shackle raises the force needed for common bolt cutters, giving pry-resistant performance for industrial lockout applications.

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