Kawneer KW450353 Threshold Scr...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$126.92
$96.40
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Kawneer KW450353 Threshold Screw Spline for 42" Offset Pivot Single Acting Single Door Open Back Frames, Left-Handed

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Model: KW450353

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

$126.92
$96.40
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Kawneer KW450353 Threshold Screw Spline for 42" Offset Pivot Single Acting Single Door Open Back Frames, Left-Handed

The Kawneer KW450353 is a genuine Kawneer service replacement part, a threshold screw spline engineered specifically for 42" offset pivot, single acting, single door configurations on open back frames in a left-handed application. Designed as a precision-fit component for Kawneer door systems, this replacement part ensures a proper and secure connection at the threshold level, maintaining the structural and operational integrity of the door assembly. As an authentic Kawneer service part, the KW450353 is the correct choice for technicians and installers restoring original-equipment performance to commercial door installations.

Key Features

  • Precise Compatibility: Designed specifically for 42" offset pivot, single acting, single door open back frame configurations for accurate fit and function.
  • Left-Handed Configuration: Factory-specified for left-handed door applications, eliminating guesswork during service and replacement.
  • Genuine Kawneer Service Part: Authentic OEM replacement component sourced directly from Kawneer, ensuring form, fit, and function consistent with original installation specifications.
  • Threshold Screw Spline Design: Provides a secure fastening interface at the threshold, maintaining door alignment and structural performance in commercial open back frame assemblies.
  • Commercial-Grade Application: Rated and intended for commercial door systems, consistent with Kawneer's professional-grade product standards.
  • Exit Device Parts Category: Classified as an exit device part and replacement component, suitable for service, repair, and maintenance of Kawneer door hardware assemblies.

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: KW450353
  • Features: Kawneer Service Parts

Typical Applications

  • Commercial Office Building Entrance Systems
  • Retail Storefront Door Assemblies
  • Educational Facility Entry and Exit Doors
  • Healthcare Institution Commercial Door Frames
  • Government and Municipal Building Door Hardware Maintenance
  • Industrial and Warehouse Facility Door Service
  • Multi-Tenant Commercial Property Door Repair and Upkeep

Why Kawneer KW450353?

Kawneer service parts like the KW450353 are manufactured to original equipment specifications, ensuring that replacement components restore full performance to commercial door assemblies without compromise. Designed for demanding commercial applications, this threshold screw spline delivers the precise fit and reliable function that professional installers and facility maintenance teams depend on when servicing Kawneer door 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:
KW450353
Features:
Kawneer Service Parts

Kawneer KW450353 – Frequently Asked Questions

1) What is the Kawneer KW450353 threshold screw spline used for?
The KW450353 is a Kawneer service replacement part, a threshold screw spline that provides the fastening interface at the threshold of a Kawneer door assembly. It is specified for 42 inch offset pivot, single acting, single door setups on open back frames in a left hand application. Its job is to hold the threshold connection so the door stays in alignment.
2) Will the KW450353 work on a right-hand door?
No. The KW450353 is factory specified for left-handed openings only. If your door swings the other way, you need the right-hand version of the 42 inch offset pivot spline instead. Confirm the hand at the door before ordering, since the part is not reversible in the field.
3) Does this Kawneer spline fit a closed back frame or a center-hung pivot door?
It doesn't. The KW450353 is built for open back frames with offset pivots, single acting. Closed back frames and center hung pivot doors use different threshold prep, so this spline won't line up. Match all three conditions (open back frame, offset pivot, single acting) plus the 42 inch door width before you order.
4) Is the KW450353 a genuine Kawneer part or an aftermarket copy?
It is a genuine Kawneer service part, made to original equipment specification for Kawneer door systems. For a property manager or glass front installer restoring an existing Kawneer entrance, that matters: the spline has to match the original threshold prep exactly, and an OEM part is the one that does.
5) Do I order the KW450353 by itself or does it come with the pivot hardware?
It is ordered as a single replacement component, model KW450353, one item per SKU. Offset pivots, the threshold itself, and any fasteners beyond the spline are separate line items, so build the rest of the service order around it if you are rebuilding the bottom of the door.
6) Is this part rated for commercial storefront use or is it residential hardware?
Commercial. The KW450353 is intended for commercial door systems, the sort of work you see in office building entrances, retail storefronts, school and healthcare entries, and municipal buildings where Kawneer aluminum entrances are standard.
How fast can I get the Kawneer KW450353 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 KW450353 come with a warranty?
Absolutely. The Kawneer KW450353 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 KW450353?
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 KW450353 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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