Hager 742S-V 36" Automatic Doo...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$76.18
$57.53
Hager 742S-V 36" Automatic Door Bottom with Vinyl Insert for Hollow Metal Doors

Hager 742S-V 36" Automatic Door Bottom with Vinyl Insert for Hollow Metal Doors

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Model: 742SV 36 MIL
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$76.18
$57.53
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Hager 742S-V 36" Automatic Door Bottom with Vinyl Insert for Hollow Metal Doors

Concealed Automatic Door Bottom Solution

The Hager 742S-V automatic door bottom is specifically designed for hollow metal door applications, featuring a vinyl insert and milled aluminum finish. This 36" unit measures 1-3/8" width by 3/4" height and is engineered to be completely concealed within the bottom channel of hollow metal doors. UL listed with fire rating certification, this professional-grade door bottom provides reliable sealing performance for commercial applications.

Professional Features & Benefits

  • Concealed Installation Design: Completely hidden within the bottom channel of hollow metal doors for clean, professional appearance without visible hardware.
  • Precision Sizing: 36" length with 1-3/8" width and 3/4" height dimensions engineered for optimal fit in standard hollow metal door channels.
  • Flexible Length Options: Can be trimmed up to 3" for doors between 36" and 48" to ensure perfect fit for various door widths.
  • Durable Vinyl Insert: High-quality vinyl sealing element provides effective barrier against air, sound, and moisture infiltration.
  • Fire-Rated Construction: UL listed design meets fire safety requirements for commercial door applications requiring code compliance.
  • Milled Aluminum Finish: Corrosion-resistant aluminum construction with milled finish provides long-lasting durability and professional appearance.
  • Complete Hardware Package: Includes #6 x 5/8" pan head sheet metal screws for secure mortise installation.
  • Five-Year Warranty: Manufacturer warranty coverage provides confidence and protection for commercial installations.

Technical Specifications

  • Commercial/Residential: Commercial
  • Fasteners: #6 x 5/8" Pan head sheet metal screws furnished with mortise types Finishes MILFire Rating ULListed Inserts Vinyl Length 24" to 60" Notes The 742S is designed to be completely concealed in the bottom channel of hollow metal doors Furnished exact length as stated. 36"-48" can be trimmed up to 3" Do not trim device wth length of 24" All other sizes can be trimmed up to 1" Product Description Automatic Door Bottom Hollow Metal Door Application Size Width: 1-3/8" (34.93 mm) Height: 3/4" (19.1 mm) Warranty Five-Year Warranty
  • Finishes: MIL
  • Fire Rating: UL Listed
  • Inserts: Vinyl
  • Length: 24" to 60"
  • Notes: The 742S is designed to be completely concealed in the bottom channel of hollow metal doors; Furnished exact length as stated.; 36"-48" can be trimmed up to 3"; Do not trim device wth length of 24"; All other sizes can be trimmed up to 1"
  • Size: Width: 1-3/8" (34.93 mm) Height: 3/4" (19.1 mm)
  • Subcategory: Door Thresholds
  • Warranty: Five-Year Warranty

Installation & Operation

  1. Verify hollow metal door bottom channel dimensions accommodate the 1-3/8" width by 3/4" height device profile.
  2. Measure door width and trim device if necessary - 36" to 48" doors can be trimmed up to 3", other sizes up to 1" maximum.
  3. Position the automatic door bottom in the door’s bottom channel ensuring proper alignment and clearance for operation.
  4. Mark mounting hole locations using the device as a template for accurate placement of fastener points.
  5. Secure the unit using the provided #6 x 5/8" pan head sheet metal screws, ensuring proper torque for secure attachment.
  6. Test automatic operation to verify proper deployment and retraction of the vinyl insert throughout the door’s full range of motion. Refer to manufacturer documentation for complete installation details and adjustment procedures.

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Government and Municipal Buildings
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Fire-Rated Door Assemblies

Why Choose Hager Quality?

Hager automatic door bottom products deliver professional-grade reliability with UL listed fire-rated construction and milled aluminum durability. Five-Year Warranty coverage provides added confidence for demanding commercial applications. Engineered specifically for hollow metal door applications where concealed installation and code compliance are essential requirements.

Product Specs

Product Group:
Door Trim and Accessories
Product Subgroup:
Door Thresholds
Product Type:
Door Bottom Sweeps
Commercial/Residential:
Commercial
Subcategory:
Door Thresholds
Product Category:
Door Trim and Accessories
Department:
Door Hardware

Hager 742SV 36 MIL – Frequently Asked Questions

1) Will the Hager 742S-V automatic door bottom fit a wood door, or is it only for hollow metal?
It's built for hollow metal doors only. The 742S is made to sit completely concealed inside the bottom channel of a hollow metal door, so it relies on that factory channel to house the 1-3/8 inch wide by 3/4 inch high body. A wood door has no such channel, so you'd need a mortised or surface-applied door bottom intended for wood instead.
2) Is this automatic door bottom acceptable on a fire-rated door assembly?
The 742S-V is UL Listed with a fire rating, which is why it gets specified on fire-rated hollow metal openings in schools, hospitals and government buildings. Verify the rating on your specific door assembly still allows the device per the door manufacturer's listing.
3) How much clearance do I need in the door bottom channel for the 742S?
Plan on a channel that accepts a 1-3/8 inch wide by 3/4 inch high body (34.93 mm x 19.1 mm). Measure the existing channel before ordering, because the device is designed to disappear into it entirely rather than hang below the door.
4) Do I need to buy fasteners separately for the Hager 742S-V?
No. The mortise-type units come with #6 x 5/8 inch pan head sheet metal screws. Use the device itself as a drilling template, then set it in the channel and fasten. Nothing else ships with it.
5) What is the difference between an automatic door bottom and a regular door sweep?
A sweep carries a fixed seal that drags on the floor every time the door moves. An automatic door bottom like the 742S-V drops its vinyl seal only when the door closes and lifts it clear when the door opens, so there is no floor drag and no worn-out seal from constant contact. It also concealed in the door's bottom channel instead of being surface-mounted, so nothing shows. Pick the automatic type where you want a clean look, carpet or finished flooring, or a smoke and sound seal on a commercial opening.
6) What lengths does the Hager 742S automatic door bottom come in for wider openings?
The 742S range runs 24 inches to 60 inches, furnished at the exact length ordered. The 36 inch unit with vinyl insert covers a standard 3-0 door and can be trimmed up to 3 inches for anything between 36 and 48 inches of frame-to-frame measurement. For pairs, order one unit per leaf.
7) What finish does the 742S-V come in, and will it match other door bottoms in my building?
One finish only: MIL, milled aluminum. If you are standardizing a facility, every 742S-V you order will match, but it will not blend with anodized or plated hardware. Since the unit is concealed in the door channel anyway, the finish rarely shows once installed.
8) Is the Hager 742S-V rated for commercial traffic or is it a residential part?
Commercial. Hager classes the 742S-V as a commercial device, and it's the kind of part that goes on hollow metal openings in offices, schools, healthcare, and multi-tenant residential corridors where the door cycles all day and needs a UL Listed seal.
9) Does the vinyl insert on the 742S-V seal against air and sound, or just light?
The vinyl insert is the sealing element and it compresses against the floor to block air, sound, and moisture infiltration when the door closes. Effectiveness depends on your floor being reasonably flat under the door, since the seal drops a fixed amount and cannot bridge an uneven or sloped slab.
How fast can I get the Hager 742SV 36 MIL 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 Hager 742SV 36 MIL come with a warranty?
Absolutely. The Hager 742SV 36 MIL 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 Hager 742SV 36 MIL?
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 Hager 742SV 36 MIL 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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