LCN 4040XP-SRT Self-Reaming an...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$34.47
LCN 4040XP-SRT self-reaming and tapping screw pack for 4040XP series door closers, aluminum finish, bagged hardware kit

LCN 4040XP-SRT Self-Reaming and Tapping Screw Pack for 4040XP Door Closer Series

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Model: 4040XP-SRT-689
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$34.47
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LCN 4040XP-SRT Self-Reaming and Tapping Screw Pack

The LCN 4040XP-SRT is a replacement screw pack for the LCN 4040XP door closer series. The screws are self-reaming and self-tapping, eliminating the need for pre-drilling or separate tapping operations during door closer installation. Intended for commercial applications.

Features

  • Self-reaming design cuts its own clearance hole on entry
  • Self-tapping threads form during drive-in, no tap required
  • Matched to LCN 4040XP series mounting geometry
  • Commercial-grade construction for high-cycle door applications

Compatibility

  • LCN 4040XP Door Closer Series
  • Available in multiple finishes to match closer finish

Additional Information

Refer to the LCN Full Line Catalog for installation instructions and torque specifications.

Manufacturer Resources

LCN Full Line Catalog

Product Specs

Subcategory:
Parts and Accessories
Series:
4000 Series
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:
4040XP
Product Category:
Door Controls
Department:
Door Hardware

LCN 4040XP-SRT-689 – Frequently Asked Questions

1) Will the LCN 4040XP self-reaming screw pack work with a 4040XP door closer I already have mounted?
Yes. The SRT pack is LCN's fastener set for the 4040XP closer specifically, so it matches that closer's mounting pattern whether you're hanging a new unit or re-securing one that has worked loose. It is a fastener pack only, not an arm or a closer body, so it won't replace worn linkage or a leaking cylinder.
2) I need door closer parts but mine isn't an LCN 4040XP. What else is there?
This pack is 4040XP-specific, so it's the wrong buy for another closer. For a Cal-Royal 900 Series closer, the Cal-Royal 900 Series accessories kit is the matching part. On Deltana closers the arms are model-tied: DCCA4041 cushion arm for the DC40, DCHA1050 hold open arm for the DC10. For a Dorma unit needing a bottom arm, the Dorma 15323 is a 1-1/2 inch offset bottom arm with cover, standard duty and not fire rated.
3) Is the 4040XP-SRT pack a complete closer, or do I still need to order the closer itself?
Fasteners only. The SRT pack is installation hardware, so a new opening still needs the LCN 4040XP closer and its arm. Where the pack earns its place is a retrofit into an existing frame with no usable tapped holes, since the screws ream and tap as they go.
4) The opening has a floor closer rather than a surface closer. What hardware applies instead of the 4040XP screw pack?
The 4040XP-SRT screw pack fastens a surface-mounted LCN 4040XP closer to the door and frame, so it has no role on a floor-closer opening. For center hung floor closer openings the hardware is the closer unit itself: the Norton Rixson 28 Series is a center hung single acting heavy duty floor closer rated to 350 lbs door weight, the 328 Series is center hung single acting heavy duty at 325 lbs capacity, and the 30 Series is center hung double acting heavy duty at 200 lbs door weight. Choose by whether the door swings one way or both and by the leaf weight, then mount per that closer's own case hardware.
5) What is the equivalent door closer accessory kit if the opening uses Cal-Royal closers instead of LCN?
The LCN 4040XP-SRT is a self-reaming and tapping screw pack matched to the LCN 4040XP door closer, so it is tied to that closer's mounting pattern. Where the door already carries Cal-Royal 900 Series closers, the parallel item is the Cal-Royal 900 Series Door Closer Accessories Kit, which is built for the 900 Series. Both are accessory hardware for surface closers; each stays with its own closer series, so a facility standardizing on one brand of closer orders the kit that carries that brand's series designation.
6) What does self-reaming and tapping actually save me on a door closer install?
The screws cut their own hole and thread as they drive, so there's no separate drill-and-tap step on the door or frame. On a hollow metal frame or a metal door face that means one tool instead of three and no chasing a tap size, which is why these are worth stocking on the truck for closer swaps.
7) What finishes does the 4040XP screw pack come in so it matches my closer?
Nine finishes, so you can match the closer body and cover rather than leaving bright screws on a dark closer: 689 aluminum painted, 690 statuary bronze, 691 light bronze, 693 gloss black, 695 dark bronze, 606 satin brass, 639 satin bronze, 616 satin bronze blackened, and 632 bright brass. Order the same finish code as the closer you're mounting.
8) I'm standardizing closers across a portfolio of buildings. Can I keep one screw pack part number for all of them?
One part number covers the fastening if every opening runs an LCN 4040XP, since the SRT pack is built for that closer. Finish is the variable, not the pack itself, so a property manager stocking spares only needs to split the order by finish code to match what's on each door.
9) Can a Deltana cushion arm or hold open arm be used in place of the 4040XP self-reaming screw pack?
No, those solve a different problem. The 4040XP-SRT is fastening hardware, self-reaming and self-tapping so the screws cut their own threads in the door or frame without a separate drill and tap step. The Deltana DCCA4041 is a cushion arm for the DC40 door closer and the DCHA1050 is a hold open arm for the DC10 door closer; both are arm assemblies that change how the closer controls the swing, not the screws that hold the closer body to the opening. A job that needs hold open function needs an arm; a job that needs mounting fasteners needs the screw pack.
10) Is the Dorma 15323 offset bottom arm an alternative to the LCN 4040XP-SRT?
They are different classes of part. The Dorma 15323 is a 1-1/2 inch offset bottom arm with cover, standard duty, and it carries the bottom of an offset hung door on a pivot or floor closer spindle. The LCN 4040XP-SRT is a pack of self-reaming and tapping screws used to mount an LCN 4040XP surface closer. Ordering the 15323 for a 4040XP installation leaves the closer without fasteners, and ordering the screw pack for an offset hung bottom pivot leaves the door without an arm.
11) Is this screw pack suitable for commercial buildings, or is it residential-grade fastening?
Commercial. LCN rates the 4040XP fastener pack for commercial door control service, which is where the 4040XP itself lives: offices, schools, hospitals, retail and government openings where a closer gets cycled all day.
12) Does using this screw pack affect ADA compliance on my door closer?
The pack is listed as ADA compliant and supports an ADA-compliant installation when used with a compatible LCN 4040XP closer. The fasteners don't set opening force; that comes from how the closer is adjusted. What they do is hold the mounting solid so the adjustment stays where you set it.
How fast can I get the LCN 4040XP-SRT-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 4040XP-SRT-689 come with a warranty?
Absolutely. The LCN 4040XP-SRT-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 4040XP-SRT-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 4040XP-SRT-689 from ZenSupply?
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