Name: LCN 4021T-POWDER Heavy Duty Surface-Mounted Door Closer with Single Lever Arm and Powder Coat Finish
Brand: LCN
SKU: 4021T-STD-689-RH
Price: 549.79 USD
Availability: InStock

Product Overview
FAQs

LCN 4021T Heavy Duty Surface-Mounted Door Closer with Single Lever Arm and Powder Coat Finish

Professional Grade 1 Door Closer for High-Traffic Commercial Applications

The LCN 4021T is a heavy-duty surface-mounted door closer featuring cast iron construction with a single lever arm design and powder coat finish. This Grade 1 device is engineered for interior high-traffic conditions with a 1-1/2" diameter piston and double heat-treated steel pinion journal. Sized cylinders accommodate interior doors up to 5'0" and exterior doors up to 4'0", while the non-sized cylinder adjusts for interior doors to 4'6" and exterior doors to 3'6". UL and cUL listed with ANSI/BHMA A156.4 Grade 1 certification ensures reliable performance in demanding commercial environments.

Professional Features & Benefits

Door Size Compatibility: Sized cylinders for interior doors up to 5'0" and exterior doors up to 4'0", with non-sized cylinder adjustable for interior doors to 4'6" and exterior doors to 3'6".
Heavy-Duty Cast Iron Construction: Cast iron cylinder with full-complement bearing and 1-1/2" diameter piston provides exceptional durability for high-traffic installations.
Grade 1 Performance Certification: Tested and certified under ANSI/BHMA A156.4 Grade 1 standards for superior reliability and long-term operation in demanding commercial applications.
LCN Green Dial Spring Force Indicator: Patented adjustment system eliminates guesswork for precise spring force setting and optimal door operation.
All-Weather Fluid Technology: Specially formulated fluid ensures consistent performance across varying temperature conditions for reliable operation.
UL Fire Safety Compliance: UL and cUL listed for self-closing doors with regular or fusible link arms for fire-rated applications.
ADA Compliant Design: Meets ADA requirements for accessible door operation in commercial facilities.
Manufacturer Warranty: 30 Year comprehensive warranty coverage provides long-term protection and confidence in product reliability.

Technical Specifications

ADA Compliant: Yes
BAA Qualified: Yes
Closer Size: 1
Commercial/Residential: Commercial
Cover Type: Plastic/Metal
Delay Function: No
Department: Door Hardware
Duty Level: Heavy Duty
Finish Type: Powder Coat
Fluid Type: All-Weather
Handle Type: Lever
MAP Policy: Yes
Mounting Detail: Surface - Top Jamb (Pull Side)
Mounting Hole Pattern: 2-1/2" x 6"
Mounting Location: Pull Side
Mounting Method: Surface Mount
Product Category: Door Controls
Product Group: Door Controls
Product Model: 4021T
Product Subgroup: Door Closers - Surface Mounted
Product Substrate: Iron
Product Type: Surface Mounted Door Closers
Series: 4020T Series
Subcategory: Surface Mounted Closers
Warranty: 30 Year

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 closers deliver professional-grade reliability with cast iron construction and double heat-treated steel components engineered for demanding high-traffic applications. The comprehensive 30-year warranty demonstrates LCN's commitment to long-term performance and customer satisfaction. Certified to ANSI/BHMA Grade 1 standards with UL listing, this closer provides the dependable operation essential for commercial door control systems.

Manufacturer Resources

LCN Full Line Catalog

LCN 4000 Series Surface Mounted Closers Catalog Section

Choosing the Right Surface Mounted Door Closer

LCN 4000 Series Metal Template

LCN Installation Instructions/Templates Index

Product Specs

Series:: 4020T Series
Duty Level:: Heavy Duty
ADA Compliant:: Yes
BAA Qualified:: Yes
Mounting Hole Pattern:: 2-1/2" x 6"
Warranty:: 30 Year
Closer Size:: 1
Mounting Detail:: Surface - Top Jamb (Pull Side)
Mounting Location:: Pull Side
Subcategory:: Surface Mounted Closers
Product Group:: Door Controls
Product Subgroup:: Door Closers - Surface Mounted
Product Type:: Surface Mounted Door Closers
Finish Type:: Powder Coat
Fluid Type:: All-Weather
Commercial/Residential:: Commercial
Handle Type:: Lever
MAP Policy:: Yes
Product Model:: 4021T
Cover Type:: Plastic/Metal
Delay Function:: No
Mounting Method:: Surface Mount
Product Category:: Door Controls
Product Substrate:: Iron
Department:: Door Hardware

LCN 4021T-STD-689-RH – Frequently Asked Questions

1) Will the LCN 4021T door closer handle a 4-foot exterior door?

Yes, with the sized cylinder. The 4021T's sized cylinders cover interior doors up to 5'0" and exterior doors up to 4'0". The non-sized cylinder is the lighter option, good for interior doors to 4'6" and exterior to 3'6". Exterior openings load a closer harder than interior ones because of wind and stack pressure, so if you're at the top of the exterior range, order the sized cylinder rather than the adjustable one.

2) Does the LCN 4021T mount on the pull side of the door?

Pull side only. The 4021T is set up for surface top jamb mounting on the pull side, so the closer body lands on the frame face above the door and the arm reaches back to the door. If your opening needs the closer on the push side (a parallel arm application, common where the door swings out into a corridor or where you want the body off the door face), this is not the mounting configuration for it. The mounting hole pattern is 2-1/2" x 6".

3) Do I have to specify handing when ordering an LCN 4021T closer?

Yes. The 4021T is ordered left hand or right hand, so you need to know the swing before you buy. Stand outside the opening, on the side the door swings away from you: if the hinges are on your left, it's left hand. Get this wrong on a track-arm closer and the hardware will not install correctly on the opening.

4) What is the difference between the hold open track and the standard track on the LCN 4021T?

Four track options: standard track, track with bumper, hold open track, and hold open track with bumper. The standard track just closes the door. A hold open track lets the door stay open at a set point, which is what you want for a receiving door, a break room, or anywhere staff need the door parked open. The bumper versions add a stop in the track so the door cannot swing past its limit and hit an adjacent wall or damage the frame. Note that hold open on a fire-rated opening is only permitted with the right fire release arrangement, so check the opening's fire requirement before you pick a hold open track.

5) Is the LCN 4021T ADA compliant for accessible openings?

Yes. The 4021T is ADA compliant, which matters on schools, healthcare, government buildings and any accessible route where opening force is regulated. The LCN green dial spring force indicator on the closer makes that setting checkable in the field, so an inspector or maintenance tech can confirm where the spring is set without guessing. Remember ADA opening force is a function of how you adjust the closer, not just which model you buy.

6) Can I use the LCN 4021T on a fire-rated door?

Yes. The 4021T is UL and cUL listed for self-closing doors, with regular or fusible link arms, and it carries ANSI/BHMA A156.4 Grade 1 certification. That is the listing a fire door assembly needs from the closer. On a fire-rated opening the door has to close and latch on its own every time, so a mechanical hold open track is not the right choice there unless the opening is set up for fire release.

7) Is the LCN 4021T strong enough for a high traffic entrance that gets abused?

That's what it's built for. Heavy duty rating, cast iron cylinder, a 1-1/2" diameter piston, full-complement bearing and a double heat-treated steel pinion journal. Cast iron is the heavier construction compared with the aluminum-body closers common in medium-duty lines, and it's the usual specification for school corridors, hospital doors, and multi-family entries where the closer takes constant cycling. All-weather fluid keeps the sweep and latch speeds consistent when the temperature swings.

8) What is a size 1 closer and is it enough for my door?

The 4021T is a closer size 1. Closer sizes run roughly 1 through 6, with the number tracking door width and the force needed to pull it shut, so a size 1 is the light end and is aimed at narrower interior openings. On the 4021T the cylinder sizing is what governs: sized cylinders take interior doors to 5'0" and exterior to 4'0". If you're hanging wide, heavy exterior doors or you want one closer that can be dialed anywhere from size 1 to 6 across a mixed building, an adjustable-spring closer is the easier stock item. ZenSupply carries the BEST EHD9000 Series extra heavy-duty closer with adjustable spring sizes 1-6 and the Sargent 1431 Powerglide heavy-duty closer with adjustable spring power.

9) What is the closest heavy duty cast iron equivalent to the LCN 4021T from another manufacturer?

The Sargent 281 Powerglide is the nearest match on construction and duty class: it is a heavy duty Grade 1 surface door closer with a cast iron body, the same combination the 4021T offers with its iron substrate and heavy duty rating. The Falcon SC71A is the other close peer, a heavy duty Grade 1 surface mount closer in the SC70A series. Both are surface mounted like the 4021T, so the opening prep stays in the same family of applications.

10) I need a hold open closer instead of a non hold open one - what else should I look at?

The 4021T covers hold open through its track choices, with a hold open track and a hold open track with bumper alongside the standard and bumper tracks. If a hold open arm rather than a track is wanted, the Accentra 51 Series uses a tri-packed hold open arm, and the Orca BHDC1958HO uses a tri-packed hold open arm on a door thickness of 1-3/4 inch with a parallel bracket.

11) My spec calls for delayed action - can I use the LCN 4021T?

No. The 4021T has no delay function. For a delayed action closer, the Orca BHDC1958DA is a delayed action closer with a regular arm and parallel bracket for 1-3/4 inch doors, and the Orca BHDC2011DA is a delayed action closer in the same arm configuration and door thickness.

12) I need one closer model that can be mounted regular, parallel, or top jamb depending on the opening - is the 4021T that part?

The 4021T is set up for surface top jamb pull side mounting. If a single part number that covers all three mounting positions is wanted for a mixed set of openings, the Dexter DCH4000 Series is a Grade 1 surface closer with tri mount for regular, parallel, or top jamb mounting, and the Dexter DCH1000 Series is the same tri mount arrangement with a full cover. The Norton Rixson 8501A is a Grade 1 tri-mount surface closer with an adjustable size 1-6 spring, medium duty.

13) The 4021T is a size 1 closer - what should I use if I need an adjustable spring size across several door widths?

The 4021T is a size 1 closer. Where one part number needs to cover a range of door widths, the BEST EHD9000 Series is an extra heavy duty Grade 1 surface closer with adjustable spring sizes 1 through 6, the Sargent 1431 Powerglide is a heavy duty Grade 1 surface closer with adjustable spring power, and the Imperial USA TC4300 Series is a heavy duty Grade 1 size 1-6 ADA closer.

14) My drawing calls for a Grade 1 closer - which of these actually carry that grade?

The 4021T is certified to ANSI/BHMA A156.4 Grade 1 and is UL and cUL listed. Among the surface closers alongside it, Grade 1 is carried by the BEST HD8000, the Falcon SC71A, the Sargent 1431, the Corbin Russwin DC8200, and the Dormakaba 8616 with flat arm. Two that do not meet a Grade 1 line item are the Cal-Royal 400 Series, which is Grade 2, and the Falcon SC91A, which is Grade 3.

15) Does the LCN 4021T come handed, and what are the alternatives if I do not want to stock both hands?

The 4021T is ordered by hand, left hand or right hand. Where handing is not wanted in inventory, the Sargent 1331 is a Grade 1 surface closer with a universal aluminum body, and the Norton Rixson 1601P in the 1600 Series is a Grade 1 tri-mount closer with 180 degree swing.

16) Which closer should I use on an aluminum storefront door instead of the 4021T?

For a storefront opening, the Norton Rixson 1600 Series aluminum storefront closer is built for that application and is heavy duty Grade 1 with tri-style mounting. The Dormakaba 8916-JT is another option there, a heavy duty Grade 1 surface closer with a jamb track and frame face mounting on the pull side, adjustable size 1 through 6.

17) Does the LCN 4021T have delayed action for slow closing?

No delay function on the 4021T. If you need the door to hang open longer before it starts to close, common on healthcare doors, doors used with carts, or accessible entries where someone needs extra crossing time, look at a delayed action closer instead. ZenSupply carries the Orca Hardware BHDC1958 delayed action closer with regular arm and parallel bracket, and the BHDC2011 delayed action closer, both of which list delayed action in the function.

18) Should I get the plastic cover or the metal cover on the LCN 4021T?

Both are offered: plastic cover is the default, metal cover is the MC option. The metal cover is the one to take on openings where the closer gets hit, kicked, or picked at, so school corridors, gyms, detention-adjacent spaces, and public restrooms. The plastic cover is fine for offices and interior doors in controlled areas. Choose it at the time you order, since the cover is a selectable option on the closer.

19) What finishes does the LCN 4021T come in and will it match the rest of my door hardware?

Six powder coat finishes: 689 aluminum, 690 statuary bronze, 691 light bronze, 693 gloss black, 695 dark bronze, and 696 brass. 689 aluminum is the standard commercial finish and the one that matches most aluminum storefront and painted hollow metal work. 690 and 695 pair with dark bronze frames and levers. If you're standardizing across a building, pick the number that matches the finish code already on your locksets rather than matching by eye, since bronzes vary between manufacturers.

20) I need a closer for a federal or government job with Buy American requirements, does the LCN 4021T qualify?

The 4021T is BAA qualified, which is the flag procurement teams look for on federally funded work. Combined with the ANSI/BHMA A156.4 Grade 1 certification and UL listing, it covers the usual spec language on government and municipal projects.

21) What is the heavy duty cast iron alternative to the LCN 4021T if I need a different brand?

The closest peers ZenSupply stocks by construction and duty are the Sargent 281 Powerglide, a cast iron surface closer rated heavy duty and Grade 1, and the Sargent 1431 Powerglide heavy-duty Grade 1 closer with adjustable spring power. The BEST HD8000 Series and EHD9000 Series are heavy duty Grade 1 surface closers as well, and the Falcon SC71A is a heavy-duty Grade 1 surface mount. Where those differ from the 4021T is the arm and mounting: the 4021T is a track arm closer specified pull side top jamb, while several of those are tri-mount or regular arm units, so confirm the arm style matches the opening you're covering.

22) Should I use a track arm closer like the LCN 4021T or a regular projecting arm closer?

A track arm keeps the arm tight to the door in a slide track, so there's much less to grab, hang a bag on, or vandalize, and it reads cleaner on a finished corridor. That's why it's the usual pick for schools, healthcare, and public buildings. A regular projecting arm sticks out from the door and gives more mechanical advantage, which helps on wide or wind-loaded exterior openings, and it's usually the cheaper, more forgiving install. If you need tri-mount flexibility because you don't know yet whether the closer lands regular, parallel, or top jamb, ZenSupply carries tri-mount options like the Norton Rixson 8501A and the Dexter DCH4000 Series. The 4021T is a single-configuration unit: pull side, top jamb.

23) I'm drilling the frame for an LCN 4021T, what hole pattern do I lay out?

The 4021T uses a 2-1/2" x 6" mounting hole pattern, and it lands on the frame face at the top jamb on the pull side. Lay the template on the frame, not the door leaf, since the closer body sits on the jamb and only the track goes on the door. LCN publishes the 4000 Series metal template data sheet and a full templates and instructions index if you need the exact dimensioned layout before you drill.

24) The 4021T is more closer than my interior office doors need - what is a lighter Grade 1 alternative?

The 4021T is rated heavy duty. For lighter interior traffic, the BEST SL6000 Series is a light duty Grade 1 surface mounted closer, and the Norton Rixson 160 Series is a light duty Grade 1 surface closer for light commercial openings. The Falcon SC61A sits between them as a light to medium duty Grade 1 cast aluminum surface mount closer.

25) What is the difference between the LCN 4021T and a track arm closer like the Corbin Russwin DC5230?

Both are pull side surface closers, but the arm hardware differs. The 4021T mounts surface top jamb on the pull side and takes a track, offered as standard track, track with bumper, hold open track, and hold open track with bumper. The Corbin Russwin DC5230 is a Grade 1 surface closer with a slide track arm as standard, pull side mounting, for 1-3/4 inch doors. The Corbin Russwin DC6200 by contrast uses a double lever regular arm on pull side mounting, which projects from the door rather than riding in a track.

26) Is the Arrow DC314 a drop in replacement for the LCN 4021T?

They are not the same class of closer even though both carry Grade 1. The Arrow DC314 in the DC300 Series is a light duty Grade 1 surface mounted closer, while the 4021T is heavy duty with an iron body. On an opening currently carrying a heavy duty closer, the closer peers are the BEST HD8000 Series, a heavy duty Grade 1 surface mounted closer, or the Design Hardware 416 Series heavy duty closer.

27) The 4021T ships with a cover - what if I need a closer without one?

The 4021T is ordered with a plastic cover as the default or a metal cover as an option. Where the cover is being omitted, the Arrow DCN314 is a Grade 1 surface closer supplied less cover with a regular or parallel arm tri-pack and adjustable spring size 1 through 4, and the Arrow DCN325 is the same less cover arrangement with adjustable spring size 1 through 6.

28) Is the Stanley A45-501HL an alternative to the LCN 4021T for a top jamb opening?

The Stanley Security A45-501HL is a top jamb closer with a long hold open arm as standard, in the D-455 series, so it addresses the same top jamb position the 4021T mounts in on the pull side. The difference is the hold open method: the Stanley uses a long hold open arm, while the 4021T achieves hold open through its hold open track and hold open track with bumper options.

29) I am buying for a federal project with Buy American requirements - how does the 4021T compare on that?

The 4021T is BAA qualified and ADA compliant, and is certified to ANSI/BHMA A156.4 Grade 1 with UL and cUL listing. On the compliance line items other Grade 1 heavy duty candidates include the BEST EHD9000 Series and the Falcon SC71A, and the Imperial USA TC4300 Series is a heavy duty size 1-6 ADA closer.

30) What looks like a substitute for a 4021T but is not a door closer at all?

The Stanley Security 327 heavy wardrobe pivot and the Stanley Security 341 wardrobe pivot are pivots that carry the weight of a door, not hydraulic closing devices, and the Stanley Security 57-0100 steel machine screws for architectural hinges are fasteners. The Arrow DCN500DP parallel drop plate is a mounting plate for the DCN500 rather than a closer body. None of these control the closing cycle of the door the way the 4021T does with its all-weather fluid.

31) Is the LCN 4021T suitable for a residential apartment door?

It's a commercial-rated unit, not a residential one. That's fine and in fact common on multi-tenant residential corridors and building entries, where the doors are fire-rated and take commercial traffic. For an interior unit door inside an apartment, a heavy duty cast iron Grade 1 closer is more hardware than the opening needs, and ZenSupply carries lighter options such as the Falcon SC91A light duty closer or the Deltana DC10.

How fast can I get the LCN 4021T-STD-689-RH 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 4021T-STD-689-RH come with a warranty?

Absolutely. The LCN 4021T-STD-689-RH 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 4021T-STD-689-RH?

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 4021T-STD-689-RH 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.

LCN 4021T-POWDER Heavy Duty Surface-Mounted Door Closer with Single Lever Arm and Powder Coat Finish

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