Kawneer KW118421-29 5x4-1/2 Bu...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$364.89
$240.05
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Kawneer KW118421-29 5x4-1/2 Butt Hinge Painted to Blend with Entrance in Black Finish

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Model: KW118421-29

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

$364.89
$240.05
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Kawneer KW118421-29 5x4-1/2 Butt Hinge Painted to Blend with Entrance in Black Finish

The Kawneer KW118421-29 is a 5x4-1/2 butt hinge engineered as a genuine Kawneer service replacement part, finished in black to blend seamlessly with compatible Kawneer entrance systems. Designed for commercial applications, this hinge offers a clean, integrated aesthetic by matching the finish of the surrounding entrance assembly. As an OEM-spec replacement component, it ensures proper fit and function for maintaining or restoring Kawneer entrance hardware to original performance standards.

Key Features

  • Precise Dimensions: 5x4-1/2 inch butt hinge sizing ensures accurate fit for compatible Kawneer entrance door applications.
  • Painted to Blend Finish: Black finish is applied to match and blend with the surrounding Kawneer entrance system for a cohesive, professional appearance.
  • Genuine Kawneer Service Part: Manufactured as an authentic Kawneer service replacement component, delivering OEM-level compatibility and fit.
  • Commercial-Grade Construction: Built to meet the demands of commercial entrance applications where reliable, long-term hinge performance is required.
  • Drop-In Replacement: Designed to replace worn or damaged original hardware without modification, minimizing downtime during maintenance or repair.

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: KW118421-29
  • Features: Kawneer Service Parts

Typical Applications

  • Commercial Office Building Entrance Systems
  • Retail Storefront Entrance Doors
  • Educational Facility Main Entry Points
  • Healthcare Facility Entrance Hardware Maintenance
  • Government and Municipal Building Entrances
  • Multi-Tenant Commercial Property Entrance Upgrades
  • Industrial Facility Entry Door Hardware Repair

Why Kawneer KW118421-29?

Kawneer service parts are engineered to OEM specifications, ensuring that replacement components like the KW118421-29 butt hinge restore original entrance system performance without compromise. The painted-to-blend black finish maintains the visual integrity of the entrance assembly, making this hinge the ideal choice for facility managers and contractors performing professional-grade maintenance on Kawneer entrance systems.

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:
KW118421-29
Features:
Kawneer Service Parts

Kawneer KW118421-29 – Frequently Asked Questions

1) What size is the Kawneer KW118421-29 butt hinge?
It's a 5 x 4-1/2 inch butt hinge, meaning a 5 inch leaf height with 4-1/2 inches of open leaf width. That sizing matches the hinge prep already cut into Kawneer entrance doors and frames, so it drops into the existing screw pattern without rework.
2) Will the KW118421-29 hinge match the black finish on my Kawneer storefront entrance?
The finish is a painted-to-blend black applied to match the surrounding Kawneer entrance system, so it reads as part of the assembly rather than an obvious replacement part. If your entrance is a black Kawneer system, this is the finish to order. If your doors are clear anodized or bronze, order the hinge in that matching finish instead.
3) Do I need to re-drill or modify the door to install the KW118421-29?
No. It's built as a drop-in replacement for the original Kawneer hinge, so it goes back into the existing prep with no modification to the door or frame. Practically, that means a maintenance tech can swap it on a single door without pulling the leaf out of service for long.
4) Is the KW118421-29 a genuine Kawneer part or an aftermarket hinge?
Genuine Kawneer service part, model KW118421-29, built to OEM spec. For property managers and facility crews maintaining aluminum entrances, that matters because an OEM hinge preserves the original leaf geometry and hole spacing, which is what keeps the door hanging square and the closer arm geometry unchanged.
5) Is this hinge rated for commercial entrance traffic or is it a residential-duty part?
Commercial. The KW118421-29 is specified for commercial entrance applications, the kind of service you see on office lobbies, retail storefronts, school main entries, healthcare entrances, and municipal buildings. It is not a light residential hinge.
6) What's the difference between a butt hinge like this and a continuous gear hinge on an aluminum entrance door?
A butt hinge such as the KW118421-29 carries the door at three or four discrete points and is what Kawneer preps most of its entrance doors for, so it's the direct repair item. A continuous geared hinge spreads the load along the full door height and is the choice when a heavy, high-traffic leaf keeps tearing out butt hinges, but it normally requires new prep on the door and frame rather than the existing butt hinge cutouts. If you're restoring an existing Kawneer opening, stay with the butt hinge.
7) I'm replacing one worn hinge on a Kawneer entrance door. Should I replace all of them?
The KW118421-29 is sold as a single service replacement hinge, so you can buy just the one that's failed. On an entrance door that sags or binds, though, the load usually shifted across all the hinges, so replacing the full set of like-size 5 x 4-1/2 hinges on that leaf keeps the door hanging true and the finish consistent across all three points.
How fast can I get the Kawneer KW118421-29 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 KW118421-29 come with a warranty?
Absolutely. The Kawneer KW118421-29 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 KW118421-29?
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 KW118421-29 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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