LCN 4030-31-689 Door Closer Co...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$9.00
$8.60
LCN 4030-31-689 Door Closer Cover Screws - Replacement Hardware

LCN 4030-31-689 Door Closer Cover Screws - Replacement Hardware

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Model: 4030-31-689

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

$9.00
$8.60
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LCN 4030 Series Door Closer Cover Screws - Replacement Hardware

Professional Replacement Hardware for Door Closer Maintenance

The LCN 4030 Series Door Closer Cover Screws provide durable replacement fastening solutions specifically designed for LCN door closers. These commercial-grade screws ensure secure attachment of door closer covers, maintaining proper operation and professional appearance. Compatible with various 4030 Series models, these replacement screws are engineered for easy installation and long-lasting performance in commercial applications.

Professional Features & Benefits

  • Series Compatibility: Designed specifically for LCN 4030 Series door closers for precise fit and reliable fastening.
  • Durable Construction: Commercial-grade materials provide secure fastening and long-lasting performance in demanding applications.
  • Easy Installation: Simple replacement process allows for quick maintenance and service of door closer covers.
  • Secure Fastening: Engineered to provide reliable attachment that maintains door closer cover integrity and operation.
  • Commercial Application: Designed for commercial use where dependable hardware performance is essential.
  • ADA Compliance: Meets ADA requirements for accessible door hardware applications.

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: 4030
  • Product Subgroup: Parts and Accessories
  • Product Type: Parts and Accessories
  • Series: 4030 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 replacement hardware delivers professional-grade reliability with commercial-grade construction designed for demanding applications. These cover screws maintain the integrity and performance of LCN 4030 Series door closers, ensuring continued ADA compliance and dependable operation. Engineered for commercial applications where reliable door control hardware is essential for building safety and accessibility.

Manufacturer Resources

LCN Full Line Catalog

Product Specs

Series:
4030 Series
Subcategory:
Parts and Accessories
Product Group:
Door Controls
Product Subgroup:
Parts and Accessories
Product Type:
Parts and Accessories
Commercial/Residential:
Commercial
ADA Compliant:
Yes
Parts and Accessories Type:
Installation Accessories
Product Attribute:
Parts and Accessories
Product Model:
4030
Product Category:
Door Controls
Department:
Door Hardware

LCN 4030-31-689 – Frequently Asked Questions

1) Will LCN 4030 cover screws fit my other LCN closers, like a 4040 or a 1460?
These screws are sold for the LCN 4030 Series and the fit is stated for that series only. For a closer in a different LCN family, order the cover screws for that series rather than assuming these carry across, since the cover and body castings differ between LCN families.
2) My door closer cover is missing, not just the screws. Do I need something else?
Cover screws are fasteners only, so they will not replace a missing or damaged cover. Order the 4030 Series cover as a separate part and use these screws to mount it. If what actually failed is the arm rather than the cover, that is a different accessory again, the way Deltana sells its DCCA4041 cushion arm and DCHA1050 hold open arm as standalone replacements for its DC40 and DC10 closers.
3) I have a floor closer, not a surface closer. Are these the right screws?
No. The 4030-31 screws belong to a surface-mounted LCN 4030 Series closer that sits on the door or frame with a cover over it. A center hung floor closer is a different machine entirely and takes its own parts, for example the Norton Rixson 28 Series single acting unit rated to 350 lbs door weight or the 30 Series double acting unit rated to 200 lbs. Confirm which type is on the opening before ordering fasteners.
4) Will a Cal-Royal 900 Series door closer accessory kit work as a source of cover screws for an LCN 4030 closer?
No. The Cal-Royal 900 Series Door Closer Accessories Kit is built around Cal-Royal's own 900 Series closers, and the LCN 4030-31 cover screws are made for the LCN 4030 Series. Cover screw thread and head geometry are set by the closer body they thread into, so accessory hardware from a different manufacturer's series is not a fastener source for a 4030 cover. If the job is putting the cover back on an LCN 4030 body, order the 4030-31 screws; the Cal-Royal kit belongs on a Cal-Royal 900 closer.
5) Are LCN 4030 cover screws rated for commercial use?
Commercial is the stated application, and LCN lists the part as ADA compliant, which matters when the closer is on an accessible opening in an office building, school, hospital, or government facility. For a landlord standardizing on 4030 closers across a property, this is the correct maintenance part to keep on the shelf.
6) How do I order LCN 4030 cover screws? Is there more than one version?
One configuration is offered, model 4030-31, so there is nothing to specify beyond the model itself. No handing, size, or length choice is involved.
7) Is there a kit that covers more than just the cover screws for a door closer?
These LCN screws are a single-purpose fastener for the 4030 Series cover. If you want a broader accessory package rather than one fastener, Cal-Royal sells a 900 Series door closer accessories kit for its own closers. Match the accessory to the closer brand and series on the door, since closer accessories are not interchangeable across manufacturers.
8) My door closer cover is loose and the arm is also worn out - are cover screws the right part or do I need an arm?
Those are two separate parts. The LCN 4030-31 screws are installation accessories that fasten a 4030 Series closer cover to the closer body; they do nothing for arm wear. A worn arm is replaced with an arm assembly for the matching closer, the way the Deltana DCCA4041 cushion arm serves the DC40 closer and the Deltana DCHA1050 hold open arm serves the DC10. Diagnose which one is actually failing: a rattling or missing cover is a screw problem, while a sloppy or bent linkage between the closer and the door is an arm problem, and on an LCN 4030 the arm must come from LCN.
9) The Dorma 15323 bottom arm comes with a cover - does that mean it includes the cover screws I need?
The Dorma 15323 is a 1-1/2 inch offset bottom arm with cover, standard duty and not fire rated, and the cover it carries is the arm cover on a Dorma pivot and arm assembly - a different part in a different position from the closer body cover on an LCN 4030. The LCN 4030-31 screws are the fastening hardware for the 4030 Series closer cover itself. Buying the Dorma arm to harvest hardware gets you parts sized for Dorma geometry, so specify the 4030-31 screws when the LCN closer cover is what needs to be secured.
10) Is the LCN 4030-31 cover screw set an ADA compliant part for a commercial opening?
Yes. The LCN 4030-31 cover screws are specified for commercial use and carry ADA compliance as part of the 4030 Series closer assembly, so restoring a cover with the correct screws keeps the closer in its listed configuration. That matters when comparing against floor closer alternatives such as the Norton Rixson 28 Series or 328 Series, which are Grade 1 heavy duty units and a different scope of work entirely. For an institutional facility standardizing on LCN surface closers, keeping 4030-31 screws in the parts crib maintains the existing compliant installation without touching the opening.
How fast can I get the LCN 4030-31-689 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 4030-31-689 come with a warranty?
Absolutely. The LCN 4030-31-689 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 4030-31-689?
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 4030-31-689 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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