LCN 4050A-18PA Drop Plate for ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$81.00
$71.71
LCN LCN 4050A-18PA Drop Plate 4050A-18PA

LCN 4050A-18PA Drop Plate for Parallel Arm Door Closer Installation

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Model: 4050A-18PA 689
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$81.00
$71.71
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LCN 4050A Series Drop Plate for Parallel Arm Door Closer Installation

Professional Door Closer Installation Accessory

The LCN 4050A-18PA Drop Plate is an essential installation accessory designed to facilitate secure parallel arm mounting of door closers where standard mounting is not feasible. Required for parallel arm mounting where the top rail is less than 5-3/4" (146 mm) measured from the stop, this drop plate ensures proper door closer positioning and operation. The plate requires a minimum 2-1/4" (57 mm) top rail for secure installation and is ADA compliant for commercial applications.

Professional Features & Benefits

  • Critical Dimension Requirements: Required for parallel arm mounting where top rail is less than 5-3/4" (146 mm) measured from the stop, ensuring proper door closer installation in challenging configurations.
  • Minimum Rail Specification: Requires 2-1/4" (57 mm) minimum top rail for secure mounting and optimal load distribution.
  • 4050A Series Compatibility: Specifically designed for use with LCN 4050A Series door closers for seamless integration and reliable performance.
  • ADA Compliance: Meets ADA requirements for commercial door hardware installations, ensuring accessibility compliance.
  • Commercial-Grade Construction: Engineered for demanding commercial applications where reliable door closer operation is essential.
  • Installation Flexibility: Enables parallel arm door closer mounting in applications where standard mounting configurations are not possible due to architectural constraints.

Technical Specifications

  • ADA Compliant: Yes
  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Parts and Accessories Type: Installation Accessories
  • Product Attribute: Parts and Accessories
  • Product Category: Door Controls
  • Product Group: Door Controls
  • Product Model: 4050A-18PA
  • Product Subgroup: Parts and Accessories
  • Product Type: Drop Plate
  • Series: 4050A Series
  • Subcategory: Parts and Accessories

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 LCN Quality?

LCN door closer accessories deliver professional-grade reliability with precision-engineered construction designed for demanding commercial applications. ADA compliant design ensures accessibility requirements are met while providing the installation flexibility needed for challenging architectural configurations. Engineered for demanding commercial applications where dependable door closer performance is essential.

Manufacturer Resources

LCN Full Line Catalog

Product Specs

Subcategory:
Parts and Accessories
Series:
4050A Series
Product Group:
Door Controls
Product Subgroup:
Parts and Accessories
Product Type:
Drop Plate
Commercial/Residential:
Commercial
ADA Compliant:
Yes
Parts and Accessories Type:
Installation Accessories
Product Attribute:
Parts and Accessories
Product Model:
4050A-18PA
Product Category:
Door Controls
Department:
Door Hardware

LCN 4050A-18PA 689 – Frequently Asked Questions

1) When do I need the LCN 4050A-18PA drop plate instead of mounting the closer directly?
You need the 18PA drop plate any time you're mounting a 4050A closer in the parallel arm position and the top rail measures less than 5-3/4 inches (146 mm) from the stop. Above that, the closer body lands on the rail on its own and no plate is required. Below it, the plate drops the shoe down so the body has something solid to sit on.
2) My door's top rail is only 2 inches. Will the 18PA drop plate work?
No. The 4050A-18PA needs a minimum 2-1/4 inch (57 mm) top rail to mount to. At 2 inches you're short, and the plate has nowhere to anchor. On rails that narrow you're looking at a different mounting approach entirely, typically top jamb or regular arm mounting off the frame rather than the door face.
3) I'm quoting a job with narrow-rail aluminum doors. Do I add a drop plate to every closer?
Only where the parallel arm is specified and the rail from the stop is under 5-3/4 inches. Measure the rail on each opening: anything at or above 5-3/4 needs no plate, anything from 2-1/4 up to 5-3/4 takes the 18PA, and anything under 2-1/4 can't take the plate at all. Order plates by count of openings in that middle band, one per closer.
4) Does the LCN 18PA drop plate fit closers other than the 4050A?
The 18PA is specified for the LCN 4050A Series closer. If you're mounting a different LCN series, use the drop plate called out for that series rather than this one; drop plate hole patterns follow the closer body they were designed around.
5) What finishes does the LCN 4050A-18PA drop plate come in, and can I match it to my existing closers?
Six finishes: 689 aluminum, 690 statuary bronze, 691 light bronze, 693 gloss black, 695 dark bronze, and 696 brass. Those are the standard LCN closer finish numbers, so a property manager standardizing a building can order the plate in the same number already on the closer covers and the hardware reads as one assembly.
6) Is the 4050A drop plate mounting ADA compliant for a public building?
Yes, the 4050A-18PA drop plate is ADA compliant, and it's built for commercial use, which is what matters on schools, healthcare, government and retail openings where the closer has to meet accessibility requirements. The plate itself doesn't change the closer's opening force; it only relocates where the body mounts.
How fast can I get the LCN 4050A-18PA 689 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 LCN 4050A-18PA 689 come with a warranty?
Absolutely. The LCN 4050A-18PA 689 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 LCN 4050A-18PA 689?
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 LCN 4050A-18PA 689 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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