Kawneer KW450352 Threshold Scr...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$118.99
$91.18
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Kawneer KW450352 Threshold Screw Spline for 36" Exit Device, Offset Pivot Single Acting Single Door, Open Back Frames, Left-Handed

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Model: KW450352

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

$118.99
$91.18
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Kawneer KW450352 Threshold Screw Spline for 36" Exit Device, Offset Pivot Single Acting Single Door, Open Back Frames, Left-Handed

The Kawneer KW450352 is a genuine service replacement part, a Threshold Screw Spline engineered specifically for use with 36" exit devices configured with an offset pivot, single-acting operation on single doors with open back frames. Designed for left-handed door applications, this commercial-grade replacement component ensures proper alignment and secure fastening at the threshold interface, maintaining the integrity and performance of the parent exit device assembly.

Key Features

  • Precise Fit for 36" Devices: Engineered specifically for 36" exit device configurations, ensuring dimensional accuracy and compatibility with the parent assembly.
  • Offset Pivot Compatibility: Designed for offset pivot, single-acting door applications, providing correct alignment and function within that specific hardware configuration.
  • Single Door, Open Back Frame Design: Optimized for single door installations on open back frames, matching the structural requirements of the intended mounting environment.
  • Left-Handed Configuration: Factory-specified for left-handed door applications, eliminating guesswork and ensuring proper installation orientation.
  • Genuine Kawneer Service Part: Sourced directly as an authorized Kawneer service replacement component, maintaining the performance standards of the original exit device system.
  • Commercial-Grade Construction: Built to the durability standards required for commercial door hardware applications, supporting reliable long-term performance.
  • Exit Device Parts Category: Classified as an exit device replacement part, suitable for service and maintenance of existing Kawneer hardware installations.

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: KW450352
  • Features: Kawneer Service Parts

Typical Applications

  • Commercial Office Buildings with Kawneer Exit Device Installations
  • Educational Facilities Requiring Exit Device Service and Maintenance
  • Healthcare Institutions with Open Back Frame Door Assemblies
  • Retail Establishments Servicing Existing Kawneer Hardware
  • Government and Municipal Buildings with Commercial Exit Devices
  • Industrial and Warehouse Facilities Maintaining Code-Compliant Egress Hardware
  • Multi-Tenant Commercial Properties Requiring Replacement Exit Device Components

Why Kawneer KW450352?

The Kawneer KW450352 Threshold Screw Spline is a purpose-built service replacement part manufactured to meet the precise specifications of the original exit device assembly. As a genuine Kawneer service component, it delivers the exact fit and construction quality needed for commercial-grade door hardware maintenance. Specifying the correct OEM replacement part ensures continued reliable egress performance and preserves the intended function of the installed system.

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:
KW450352
Features:
Kawneer Service Parts

Kawneer KW450352 – Frequently Asked Questions

1) What is the Kawneer KW450352 threshold screw spline used for?
It's a genuine Kawneer service replacement part for the threshold interface of a Kawneer exit device. The spline fastens and aligns the device assembly at the threshold so the parent exit device keeps working as built. It is a commercial door hardware component, not a complete exit device, so you order it when servicing an existing Kawneer installation rather than building a new opening.
2) Which door configuration does the KW450352 spline fit?
One specific configuration: a 36 inch exit device on a single door hung on offset pivots, single acting, in an open back frame, left handed. If any one of those four things differs on your opening (right hand, center hung or butt hinged, a pair of doors, or a closed back frame), this is not the matching spline. Kawneer publishes the threshold splines by configuration, so match all four before ordering.
3) I have a right-handed Kawneer door. Can I flip this spline around?
No. The KW450352 is factory made for left handed applications, and the threshold cut and fastening pattern follow that hand. A right hand opening needs the right hand version of the part. Handing on a pivoted entrance is determined from the outside of the door looking at the hinge side, so confirm the hand at the door before you order rather than from the drawing.
4) Will the 36 inch threshold spline work on a 42 inch Kawneer door?
No. The KW450352 is dimensioned for 36 inch exit device configurations, and the spline length has to match the device it serves. For a wider leaf you need the spline sized for that device width. Measure the existing device, not the door opening, since the device width is what the part is indexed to.
5) What is an open back frame, and why does it matter for this part?
An open back frame is an aluminum entrance frame profile that isn't closed at the rear, so the threshold termination and fastening differ from a closed back condition. The KW450352 is made for the open back condition on a single door. If your frame is a closed back profile, the spline geometry won't land the same way and you want the version specified for that frame.
6) Does ordering the KW450352 get me a complete exit device?
No, this is the threshold screw spline only, a single service component of an exit device assembly. If the device itself is damaged or missing rods, latches, or trim, those are separate parts. Order the spline when the threshold fastening is the failed piece.
7) Is the KW450352 an aftermarket part or a genuine Kawneer component?
Genuine Kawneer. It's carried as a Kawneer service part, built to the original exit device assembly's specifications. For property managers and facility maintenance groups standardizing on Kawneer storefront entrances, using the OEM spline keeps the egress hardware performing the way the original assembly was set up.
8) Is there more than one version of the KW450352 to choose from?
No options to select. The KW450352 ships as a single part number with no finish, hand, or size choices, because the hand, door width, pivot type, and frame type are all already built into that number. You either need this exact configuration or a different Kawneer part number.
How fast can I get the Kawneer KW450352 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 KW450352 come with a warranty?
Absolutely. The Kawneer KW450352 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 KW450352?
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 KW450352 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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