Master Lock 293LJS6121 Boron R...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$53.62
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Master Lock 293LJS6121 Boron Replacement Shackle for Pro Series Padlocks, 2-3/8" Tall

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Model: 293LJS6121

In Stock (leaves warehouse same day if ordered before 3pm ET)

$53.62
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Master Lock 293LJS6121 Boron Replacement Shackle for Pro Series Padlocks, 2-3/8" Tall

The Master Lock 293LJS6121 is a genuine boron replacement shackle engineered for compatibility with the 6121, 6421, 6621, 6840, 6841, 7040, 7041, and 7042 Pro Series padlocks. Featuring a 2-3/8" tall shackle dimension, this commercial-grade replacement part restores full functionality to your Pro Series padlock while maintaining the robust security performance the line is known for. Ideal for facilities management and security maintenance applications where padlock components require periodic replacement.

Key Features

  • 2-3/8" Tall Shackle: Precisely dimensioned at 2-3/8" tall to match original Pro Series padlock specifications for a proper fit and secure operation.
  • Boron Shackle Construction: Manufactured from boron alloy for high cut resistance and durability, maintaining the security integrity of the Pro Series padlock family.
  • Broad Model Compatibility: Designed as a direct replacement for Pro Series models 6121, 6421, 6621, 6840, 6841, 7040, 7041, and 7042, covering a wide range of padlock variants in the lineup.
  • Genuine Replacement Part: Sourced as an authentic Master Lock service part to ensure precise fit, function, and long-term reliability when restoring padlock operation.
  • Commercial-Grade Application: Rated for commercial use, making this shackle suitable for demanding environments where padlock uptime and security are critical.

Technical Specifications

  • Department: Door Hardware
  • Product Category: Mechanical Locks
  • Product Group: Parts and Accessories
  • Subcategory: Parts and Accessories
  • Product Subgroup: Parts and Accessories
  • Product Type: Padlocks
  • Parts and Accessories Type: Replacement Parts
  • Commercial/Residential: Commercial
  • Product Model: 293LJS6121
  • Features: Service Parts/Cylinders and Keys

Typical Applications

  • Commercial Facility Maintenance and Padlock Servicing
  • Industrial and Warehouse Security Hardware Upkeep
  • Educational Institution Lock Maintenance Programs
  • Government and Municipal Property Security
  • Retail and Storage Unit Access Control
  • Multi-Tenant Residential and Commercial Property Management
  • Fleet and Equipment Yard Security Maintenance

Why Master Lock 293LJS6121?

Master Lock Pro Series replacement components like the 293LJS6121 are engineered to exacting commercial standards, utilizing boron alloy shackle material to deliver the cut resistance and durability required in high-demand security applications. As a genuine service part covering eight Pro Series padlock models, this shackle offers broad utility and dependable compatibility for facilities teams looking to extend the working life of their existing padlock hardware.

Manufacturer Resources

Product Specs

Department:
Door Hardware
Product Category:
Mechanical Locks
Product Group:
Parts and Accessories
Subcategory:
Parts and Accessories
Product Subgroup:
Parts and Accessories
Product Type:
Padlocks
Parts and Accessories Type:
Replacement Parts
Commercial/Residential:
Commercial
Product Model:
293LJS6121
Features:
Service Parts/Cylinders and Keys

Master Lock 293LJS6121 – Frequently Asked Questions

1) Which Master Lock Pro Series padlocks does the 293LJS6121 shackle fit?
The 293LJS6121 boron shackle is a direct replacement for Pro Series padlock models 6121, 6421, 6621, 6840, 6841, 7040, 7041 and 7042. If your padlock body is one of those eight, this is the matching service shackle. Anything outside that list, including standard non-Pro Series Master Lock padlocks, takes a different part.
2) How tall is the shackle on the Master Lock 293LJS6121 replacement?
It is a 2-3/8 inch tall shackle, matched to the original Pro Series dimension. That height is what decides whether it will clear your hasp or chain, so measure the vertical clearance you need before swapping. A taller or shorter shackle height on the same lock body is a different part number.
3) Can I just replace the shackle instead of buying a whole new Pro Series padlock?
That is exactly what this part is for. The 293LJS6121 is a genuine Master Lock service part that restores a Pro Series padlock to full operation when the shackle is the damaged component, so a facilities team can keep existing keyed-alike lock bodies in service instead of rekeying a batch of new locks. If the cylinder or body is the failure point, a shackle will not fix it.
4) Is the 293LJS6121 shackle cut resistant, or just a plain steel replacement?
Boron alloy, the same shackle material the Pro Series is built around, chosen for cut resistance and durability. Swapping in this service part keeps the lock's original cut resistance rather than downgrading it to a lesser steel shackle.
5) Does the 293LJS6121 come with a key, cylinder, or lock body?
No. This is the shackle only, a service part in the Master Lock cylinders-and-keys service parts line. You reuse your existing Pro Series lock body and cylinder, so your current keying is unaffected. Order cylinders or key blanks separately if those are what you need.
6) How many different shackles do I need to stock for a mixed fleet of Pro Series padlocks?
One part covers a lot of ground here: the 293LJS6121 serves eight Pro Series models (6121, 6421, 6621, 6840, 6841, 7040, 7041, 7042) at the 2-3/8 inch shackle height. For an MRO crib running those models, that is a single line item on the shelf rather than eight.
7) Is this Master Lock shackle rated for commercial or industrial use?
Rated commercial. It is used for warehouse and industrial security hardware upkeep, equipment and fleet yard locks, school and municipal lock maintenance programs, and multi-tenant property management, which is where Pro Series padlocks normally live.
How fast can I get the Master Lock 293LJS6121 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Master Lock 293LJS6121 come with a warranty?
Absolutely. The Master Lock 293LJS6121 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Master Lock 293LJS6121?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Master Lock 293LJS6121 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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