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Sargent 278 Series Large Bow 5-Pin Key Blank for Professional Locksmith Use
Professional Key Blank for 278 Series Cylinders
The Sargent 278 Series Large Bow 5-Pin Key Blank is specifically engineered for use with Sargent 278 Series cylinder systems. This professional-grade key blank features a large bow design for enhanced grip and handling during cutting operations. The 5-pin configuration provides standard security compatibility with 278 Series lock cylinders, ensuring precise fit and reliable operation in commercial applications.
Professional Features & Benefits
- 278 Series Compatibility: Specifically designed for Sargent 278 Series cylinder systems for precise fit and operation.
- Large Bow Design: Enhanced grip surface provides better handling during key cutting and daily use operations.
- 5-Pin Configuration: Standard 5-pin tumbler compatibility for reliable security performance in commercial applications.
- Professional Grade Construction: Quality materials ensure durability and precise cutting characteristics for locksmith operations.
- Locksmith Ready: Designed for professional key cutting equipment and techniques with consistent results.
- Series Identification: Clear 278 Series designation for accurate inventory management and application matching.
- Enhanced Grip Surface: Large bow design facilitates secure handling during cutting and reduces slip potential.
Technical Specifications
- Refer to manufacturer documentation for complete technical specifications.
Installation & Operation
This key blank is designed for use with compatible Sargent 278 Series cylinders. Refer to the parent device installation instructions and manufacturer documentation for proper integration. Ensure compatibility with existing hardware before installation.
Professional Applications
- Commercial Office Buildings
- Educational Facilities
- Healthcare Institutions
- Retail Establishments
- Industrial and Warehouse Facilities
- Multi-Tenant Residential Properties
- Government and Municipal Buildings
Why Choose Sargent Quality?
Sargent key blanks deliver professional-grade reliability with precision manufacturing for accurate cutting and dependable operation. Quality construction ensures proper fit and long-term durability in high-use commercial environments. Engineered for demanding locksmith applications where consistent key performance and reliable cylinder compatibility are essential.
Manufacturer Resources
[Catalog] SARGENT Full Line Catalog
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 278-CA – Frequently Asked Questions
1) Which Sargent keyways does the 278 large bow key blank come in?
The Sargent 278 large bow blank is stocked in five keyways: CA, CB, CF, CJ, and CK. Those are Sargent's own keyway sections, so the blank you order has to match the keyway stamped on the cylinder or marked on the existing key. A CA blank will not enter a CK cylinder. If you are cutting to an existing key, pull the keyway off that key before you order, and if you are keying a new cylinder, order the blank in the same keyway the cylinder was supplied in.
2) Is the Sargent 278 key blank a 5-pin or 6-pin blank?
Five pin. The Sargent 278 large bow blank is cut for a 5-pin tumbler cylinder, which matters because a 6-pin Sargent cylinder needs a blank with the longer blade to reach the sixth chamber. Count the chambers in the cylinder plug or check the bitting length on the key you are duplicating before ordering. A 5-pin blank in a 6-pin cylinder will not operate.
3) Will the Sargent 278 key blank work in my existing Sargent cylinders?
It works in Sargent 278 Series cylinders, in the matching keyway, at 5 pins. Three things have to line up: the cylinder is Sargent 278 Series, its keyway is one of CA, CB, CF, CJ or CK, and it is a 5-pin plug. Miss any one of those and the blank either will not enter the keyway or will not lift all the chambers. Sargent 278 Series is what it is designed for, so if your cylinders are another Sargent series, match that series instead.
4) Can I have Sargent 278 key blanks cut, or do they come cut to my key?
They ship as blanks, uncut. The Sargent 278 large bow blank is intended for professional key cutting equipment, so you or your locksmith duplicates an existing key onto it or originates a new bitting on a code machine. Order the quantity you need in the correct keyway, then cut. For an institutional buyer standardizing a building, this is the part you stock so keys can be made on site rather than ordered one at a time.
5) I need keys for several buildings on different keyways. Do I order separate Sargent 278 blanks for each?
Yes, one blank per keyway. Keyway is the ordering choice on the Sargent 278 large bow blank, and the five available are CA, CB, CF, CJ and CK. If your portfolio has buildings on different Sargent keyways, you stock each keyway separately. Keeping them physically separated in the shop matters more than it sounds, since the blanks look alike at a glance and only the milling on the blade differs.
6) What is a large bow key blank and why would a locksmith pick one?
The bow is the head of the key, the part you grip. A large bow gives more surface to hold, which helps two ways: it sits more securely in the jaws and in the hand while cutting, and it gives a bigger face for stamping or tagging a key in a master keyed building. On a Sargent 278 blank the large bow is the grip design, the blade and keyway are what determine fit. Property managers running a keyed system usually prefer the large bow simply because the keys are easier to label and easier for tenants and staff to handle.
7) Is the Sargent 278 key blank meant for commercial buildings or residential use?
Commercial. The Sargent 278 large bow blank is a commercial door hardware item, sold as a replacement part for Sargent 278 Series cylinders in offices, schools, healthcare, retail, industrial, multi-tenant residential and municipal buildings. It is the blank you keep on the shelf for a keyed system already installed, not a hardware store duplicate blank for a house key.
How fast can I get the Sargent 278-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 278-CA come with a warranty?
Absolutely. The Sargent 278-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 278-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 278-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.