Master Lock 6121KA-RED Proseries Laminated Padlock 2.125in

Product Description

The MASTER LOCK 6121KA-RED is a ProSeries Weather Tough laminated padlock built for commercial and industrial security in demanding outdoor environments. The 2.125-inch heavy steel body is wrapped in a red high-visibility cover that shields the lock from water, ice, dirt, and grime. A 1.125-inch tall, 0.3125-inch diameter hardened boron alloy shackle delivers superior cut resistance, while a dual ball locking mechanism resists pulling and prying. A rekeyable 5-pin cylinder with spool pins provides high-security, pick-resistant performance. This lock is sold individually and weighs 1 pound.

The 6121KA-RED is suited for commercial and industrial applications where weather exposure and security risk are both elevated. Common deployment includes security gates, chain-link fences, trailer doors, truck cargo doors, and moving vans. The red cover allows facility managers and fleet operators to quickly distinguish access levels, departments, or employee assignments by color code. It is a practical choice anywhere a visible, weather-resistant keyed padlock is required in outdoor or semi-outdoor service environments.

Key Features

• Exclusive Weather Tough cover protects against water, ice, dirt, and grime for reliable outdoor performance
• 2.125-inch heavy steel laminated body withstands physical attack
• Hardened boron alloy shackle — 1.125 inches tall and 0.3125 inches in diameter — resists cutting
• Dual ball locking mechanism resists pulling and prying
• Rekeyable 5-pin cylinder with spool pins for high-security, pick-resistant operation
• Red high-visibility cover for color-coded access management across departments or employees

Compatibility

Designed as an OEM-style replacement or direct-use padlock for commercial and industrial gate, trailer, and truck door security applications requiring a weather-resistant keyed lock.

Installation Notes

Installation requires no tools — insert the shackle through the hasp or locking point and close until the locking mechanism engages. Before rekeying, power down or secure any electrically controlled access systems associated with the entry point. Rekeying should be performed by a qualified locksmith following the manufacturer's rekeying kit instructions. Inspect the shackle and locking body periodically for signs of wear or corrosion in high-exposure environments.

Technical Specifications

• Body Width: 2.125 inches
• Shackle Height: 1.125 inches
• Shackle Diameter: 0.3125 inches
• Shackle Material: Hardened Boron Alloy
• Locking Mechanism: Dual Ball
• Cylinder Type: 5-Pin with Spool Pins, Rekeyable
• Cover Color: Red
• Weight: 1 pound
• Unit of Measure: Each

Standard Information

• Brand: MASTER LOCK
• Manufacturer Part Number: 6121KA-RED