Kawneer KW451549 S/A Offset Ar...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$36.39
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Kawneer KW451549 S/A Offset Arm Shear Block Package Butt Hinge for Trifab 451 Systems

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Model: KW451549

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

$36.39
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Kawneer KW451549 S/A Offset Arm Shear Block Package Butt Hinge for Trifab 451 Systems

The Kawneer KW451549 is a genuine single-action (S/A) offset arm shear block package butt hinge engineered specifically for Kawneer Trifab 451 framing systems. Designed as a precision-fit replacement service part, this hinge package ensures proper structural alignment and smooth door operation in commercial aluminum framing applications. As an authentic Kawneer service part, it maintains the performance and compatibility standards required for Trifab 451 installations.

Key Features

  • Trifab 451 Compatibility: Engineered specifically for Kawneer Trifab 451 framing systems, ensuring a precise fit and correct operation without modification.
  • S/A (Single-Action) Design: Single-action offset arm configuration provides proper door swing geometry and reliable hinge function for commercial aluminum door applications.
  • Shear Block Package: Includes shear block components designed to handle lateral load transfer, maintaining door alignment and structural integrity under regular use.
  • Genuine Kawneer Service Part: Authentic OEM replacement component manufactured to Kawneer's exacting standards, preserving system warranties and performance expectations.
  • Commercial-Grade Construction: Built for the demands of commercial architectural aluminum framing environments where durability and consistent performance are essential.
  • Offset Arm Configuration: Offset arm geometry accommodates the specific door and frame relationship found in Trifab 451 systems for proper clearance and operation.
  • Direct Replacement: Serves as a direct replacement part for compatible Trifab 451 installations, minimizing downtime and simplifying maintenance.

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: Exit Device Parts
  • Parts and Accessories Type: Replacement Parts
  • Commercial/Residential: Commercial
  • Product Model: KW451549
  • Features: Kawneer Service Parts

Typical Applications

  • Commercial Office Building Entrances and Interior Doors
  • Educational Facility Aluminum Door Systems
  • Healthcare Institution Architectural Framing Installations
  • Retail Storefront Aluminum Door Maintenance
  • Government and Municipal Building Door Hardware Servicing
  • Industrial and Warehouse Facility Aluminum Framing Repair
  • Multi-Tenant Commercial Property Door System Maintenance

Why Kawneer KW451549?

Kawneer service parts like the KW451549 are manufactured to the same standards as original production components, ensuring that Trifab 451 systems continue to perform as designed after maintenance or repair. Choosing a genuine Kawneer replacement part eliminates compatibility concerns and supports the long-term reliability of commercial aluminum door framing installations where consistent performance and proper fit are non-negotiable.

Manufacturer Resources

Kawneer Service Parts Catalog

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:
Exit Device Parts
Parts and Accessories Type:
Replacement Parts
Commercial/Residential:
Commercial
Product Model:
KW451549
Features:
Kawneer Service Parts

Kawneer KW451549 – Frequently Asked Questions

1) What is the Kawneer KW451549 and what framing system does it go into?
The KW451549 is a single-action (S/A) offset arm shear block package butt hinge made as a genuine Kawneer service part for Trifab 451 commercial aluminum framing systems. It is the hinge package plus the shear block components that carry lateral load and hold door alignment, not a lockset or a complete door assembly.
2) Will the KW451549 hinge fit a Kawneer framing system other than Trifab 451?
No. The KW451549 is engineered specifically for Trifab 451 framing, and it is the fit into that system's door and frame relationship that makes the offset arm geometry work. If your opening is a different Kawneer series, this is the wrong service part for it.
3) Is the KW451549 a direct replacement for the hinge already in my Trifab 451 door, or does it need modification?
It is a direct replacement on compatible Trifab 451 installations, fitting without modification to the frame. That is the point of ordering the genuine Kawneer service part rather than a generic aluminum door hinge: the prep already in your frame matches.
4) Is this a residential door hinge or a commercial one?
Strictly commercial. The KW451549 is built for architectural aluminum framing in commercial buildings, the kind of work you see on office entrances, school and healthcare door systems, retail storefronts and municipal buildings. It is not a residential butt hinge and will not drop into a wood door jamb.
5) What does single-action offset arm mean on an aluminum door hinge?
Single-action means the door swings one direction only, as opposed to a double-acting arrangement that swings both ways. The offset arm geometry sets the door out from the frame so it clears properly on the swing. On the KW451549 that geometry is matched to the Trifab 451 door and frame relationship, so you get the correct clearance without modifying the frame.
6) Does the KW451549 come as a complete package or do I need to order the shear blocks separately?
It is sold as a package, and the shear block components are part of it. Those blocks are what transfer lateral load between the door and the framing, so ordering the package keeps the alignment and structural function intact rather than leaving you hunting the blocks separately.
7) I manage a portfolio of buildings with Kawneer storefronts. Is this the part to standardize on for hinge repairs?
For Trifab 451 openings, yes. The KW451549 is the OEM service part for that system, so it keeps every repaired door operating the same way as the ones you have not touched. Keep in mind it is series specific, so any Kawneer doors in your portfolio on a different framing series need their own service part.
How fast can I get the Kawneer KW451549 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 Kawneer KW451549 come with a warranty?
Absolutely. The Kawneer KW451549 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 Kawneer KW451549?
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 Kawneer KW451549 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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