Sargent 6278 6-Pin Master Key ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$9.17
Sargent 6278 6-Pin Master Key Blank, Large Bow

Sargent 6278 6-Pin Master Key Blank with Large Bow

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Model: 6278-CA

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

$9.17
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Sargent 6-Pin Master Key Blank with Large Bow for Professional Systems

Professional Master Keying Solution

The Sargent 6-Pin Master Key Blank with Large Bow provides the foundation for professional master key systems in commercial applications. This precision-manufactured key blank features 6-pin configuration for enhanced security flexibility and a large bow design for improved handling and identification. Engineered to Sargent's exacting standards for consistent performance in master key system applications with high-quality materials and manufacturing processes.

Professional Features & Benefits

  • 6-Pin Configuration: Six-pin design allows for complex master key hierarchies and enhanced security control in commercial systems.
  • Large Bow Design: Oversized bow provides improved grip and easier identification for master key applications and professional handling.
  • Precision Manufacturing: Manufactured to exact Sargent specifications ensuring consistent fit and reliable operation in Sargent cylinder systems.
  • Master Key System Compatible: Designed specifically for integration into professional master key systems and grand master key configurations.
  • Professional Grade Construction: High-quality materials and manufacturing processes ensure durability and long service life in demanding applications.
  • System Flexibility: Enables creation of complex keying hierarchies for multi-level access control requirements and organizational security needs.
  • Consistent Performance: Manufactured to exacting tolerances for reliable integration with Sargent cylinder hardware and seamless system operation.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

This key blank is designed for use by qualified locksmiths and security professionals. Key cutting requires specialized equipment and knowledge of Sargent keying systems. Refer to manufacturer specifications and professional locksmith guidelines for proper cutting procedures and master key system integration.

Professional Applications

  • Commercial Office Building Master Key Systems
  • Educational Facility Access Control
  • Healthcare Institution Security Systems
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings
  • Industrial Facility Security
  • Retail Chain Store Systems

Why Choose Sargent Quality?

Sargent key blanks deliver the precision and reliability required for professional master key systems with manufacturing to exacting tolerances for consistent performance. Engineered for demanding commercial applications where reliable access control and system integrity are essential, providing the foundation for professional security solutions.

Product Specs

Product Type:
Keys
Product Group:
Mechanical Locks
Product Subgroup:
Parts and Accessories
Subcategory:
Parts and Accessories
Commercial/Residential:
Commercial
Parts and Accessories Type:
Replacement Parts
Product Attribute:
Parts and Accessories
Product Category:
Mechanical Locks
Department:
Door Hardware

Sargent 6278-CA – Frequently Asked Questions

1) Which Sargent keyway do I order the 6278 key blank in?
The 6278 blank is cut for one Sargent keyway, so you have to pick it at order time: CA, CB, CC, CE, or CK. Match it to the keyway stamped on the cylinders you are keying, because a blank in the wrong section will not enter the plug at all. If you are adding keys to an existing master key system, the keyway is already fixed by that system, not by the door.
2) Will a Sargent 6278 blank work in a 5-pin cylinder?
No. The 6278 is a 6-pin blank, and it is cut to a 6-pin bitting length. A 5-pin Sargent cylinder needs a 5-pin blank in the same keyway. Order the 6278 when the system is built on 6-pin cylinders, which is what most commercial Sargent master key systems use for the extra hierarchy depth.
3) What does the large bow on the Sargent 6278 key blank actually do for me?
It is a handling and identification feature, not a functional one. The oversized bow gives more grip for turning and makes the master key easy to pick out of a ring by feel, which is why it is used for master and grand master keys rather than for the change keys handed out to tenants. Cut the same bitting on a standard bow blank and it operates identically; the bow just tells your staff which key they are holding.
4) Do Sargent 6278 key blanks come cut, or do I have to cut them myself?
They ship uncut. The 6278 is a blank, so it needs to be cut to the bitting for your system on a key machine that has the correct Sargent keyway spacing and depth card. That means a locksmith, a security integrator, or an in-house shop with the right equipment. A property manager ordering these to expand a building's master key system will need whoever maintains that system to do the cutting, since the bitting comes from the keying schedule, not from the blank.
5) I need to add keys to an existing Sargent master key system. Is a 6278 blank enough, or do I need something else?
The blank is only one piece. You need three things that this part does not supply: the keyway your system is on (CA, CB, CC, CE, or CK), the bitting from your keying schedule, and a machine set up for Sargent spacing. If the system records were never kept, the bitting has to be decoded off an existing key before anything can be cut, so start there rather than with the blank order.
6) Can I use the Sargent 6278 as a regular change key for tenant doors?
You can. There is nothing in the blank that makes it a master key; whether a key is a master, a grand master, or a change key is decided by how it is cut against the pinning in the cylinders. The large bow is a convention for flagging higher-level keys, so most shops keep it reserved for masters and use a standard bow for the keys that go out to occupants. Physically, a 6278 cut to a change key bitting works on that door.
7) Is the Sargent 6278 key blank meant for commercial buildings or houses?
Commercial. It is built for Sargent cylinder hardware in office buildings, schools, healthcare facilities, multi-tenant residential, government buildings, industrial sites, and retail chains, where a keying hierarchy is being maintained rather than a handful of standalone locks. For a single-family residence with residential-grade locks, this is the wrong blank because the cylinders will not be Sargent keyways.
How fast can I get the Sargent 6278-CA 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 Sargent 6278-CA come with a warranty?
Absolutely. The Sargent 6278-CA 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 Sargent 6278-CA?
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 Sargent 6278-CA 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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