Master Lock 293LFS6121 Boron R...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$50.47
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Master Lock 293LFS6121 Boron Replacement Shackle for Pro Series Padlocks, 1-1/2" Tall

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Model: 293LFS6121

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

$50.47
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Master Lock 293LFS6121 Boron Replacement Shackle for Pro Series Padlocks, 1-1/2" Tall

The Master Lock 293LFS6121 is a genuine boron replacement shackle engineered for use with the 6121, 6421, 6621, 6840, 6841, 7040, 7041, and 7042 Pro Series padlocks. Featuring a 1-1/2" tall shackle profile, this replacement part restores your Pro Series padlock to full operational integrity using an original-specification component. Designed for commercial applications, it delivers the same hardened boron construction as the factory-installed shackle for dependable, long-lasting security.

Key Features

  • Boron Shackle Construction: Hardened boron shackle provides enhanced cut and saw resistance for commercial-grade security performance.
  • 1-1/2" Tall Shackle: Precisely sized 1-1/2" tall shackle profile ensures a proper drop-in fit for compatible Pro Series padlocks.
  • Broad Padlock Compatibility: Designed specifically for Master Lock Pro Series models 6121, 6421, 6621, 6840, 6841, 7040, 7041, and 7042 for accurate, reliable fitment.
  • Genuine Replacement Part: Original-specification service part maintains padlock performance and security ratings after shackle wear or damage.
  • Commercial-Grade Application: Rated for commercial use, making it suitable for high-demand environments where padlock integrity is 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: 293LFS6121
  • Features: Service Parts/Cylinders and Keys

Typical Applications

  • Commercial Property Access Control
  • Industrial Facility Gate and Equipment Securing
  • Warehouse and Distribution Center Lockout/Tagout Programs
  • Retail Storage and Asset Protection
  • Construction Site Equipment Security
  • Fleet and Transportation Asset Management
  • Multi-Tenant Residential and Mixed-Use Property Management

Why Master Lock 293LFS6121?

Master Lock Pro Series replacement components are manufactured to original specifications, ensuring that your padlock's security performance is fully restored after servicing. The hardened boron shackle construction of the 293LFS6121 delivers the same resistance to cutting and sawing as the factory-installed shackle, making it the correct choice for commercial environments where lock integrity cannot be compromised. Choosing a genuine Master Lock service part eliminates compatibility guesswork and maintains the padlock's intended commercial-grade performance.

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:
293LFS6121
Features:
Service Parts/Cylinders and Keys

Master Lock 293LFS6121 – Frequently Asked Questions

1) Which Master Lock padlocks does the 293LFS6121 replacement shackle fit?
The 293LFS6121 boron shackle is made for Master Lock Pro Series padlocks 6121, 6421, 6621, 6840, 6841, 7040, 7041 and 7042. It is an original-specification service part, so it drops into those bodies without modification. If your padlock is not one of those eight models, this is the wrong shackle.
2) Can I buy just the shackle instead of a whole new Pro Series padlock?
Yes. The 293LFS6121 is sold as a service part, so a padlock with a cut, bent or worn shackle but a sound body and cylinder can be rebuilt rather than replaced. For facilities running keyed-alike sets, this keeps the existing key system intact instead of forcing a rekey.
3) Is the 293LFS6121 shackle hardened, or just plated steel?
Hardened boron, the same material as the shackle the Pro Series padlock left the factory with. That is what gives it cut and saw resistance, so replacing a damaged shackle with this part keeps the lock at its original security level rather than downgrading it.
4) Will a generic aftermarket shackle work in a Master Lock Pro Series padlock instead?
The 293LFS6121 is the genuine Master Lock part cut to original specification for the 6121 family, which is what makes it a drop-in fit at 1-1/2 inches tall. A substitute shackle that is not built to that spec risks incorrect diameter, heel and toe engagement, or reduced cut resistance, which defeats the point of servicing the lock.
5) Is this shackle suitable for commercial and industrial use?
It is rated for commercial application. Typical uses are gate and equipment securing at industrial sites, warehouse lockout/tagout programs, construction site equipment, fleet assets, and multi-tenant property common areas.
How fast can I get the Master Lock 293LFS6121 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 293LFS6121 come with a warranty?
Absolutely. The Master Lock 293LFS6121 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 293LFS6121?
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 293LFS6121 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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