Glynn-Johnson 450 Series Light...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$151.00
$111.70
Glynn-Johnson 450 Series Light to Medium Duty Surface Overhead Door Holders and Stops

Glynn-Johnson 450 Series Light to Medium Duty Surface Overhead Door Holders and Stops

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Model: 451H-SP28
$151.00
$111.70
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$151.00
$111.70
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Glynn-Johnson 450 Series Light to Medium Duty Surface Overhead Door Holders and Stops

The Glynn-Johnson 450 Series surface-mounted overhead door holders and stops deliver the widest variety of functions, materials, and finishes for light- to medium-duty commercial applications. Designed for installation on virtually all door and frame types — including doors with conventional butt hinges, offset pivots, continuous hinges, swing clear hinges, and many other specialty hinges — the 450 Series provides exceptional versatility. Provided templates allow for variable mounting positions ranging from 85° to 110° of opening, ensuring precise and flexible installation across a broad range of door configurations.

Key Features

  • Variable Mounting Range: Provided templates support mounting positions from 85° to 110° of opening for flexible installation across diverse door configurations.
  • Non-Handed Design: Simplifies installation and stocking by eliminating the need to specify hand, reducing inventory complexity for contractors and distributors.
  • Broad Door Compatibility: Designed for use with conventional butt hinges, offset pivots, continuous hinges, swing clear hinges, and many other specialty hinges on single-acting doors.
  • Wide Range of Architectural Finishes: Visible components are available in a broad variety of architectural finishes to complement any design aesthetic.
  • Multiple Base Material Options: Available in brass and 300 Series stainless steel or steel, offering the broadest range of finishes in the industry; brass and stainless steel provide the highest resistance to corrosion for longer-lasting performance in a variety of weather conditions.
  • Improved Door Closer Compatibility: Enhanced compatibility with door closers for better door control and reduced wear and tear on all door hardware components.
  • Multiple Model Configurations: Available in four distinct models — 450H Series hold-open, 450S Series stop-only, 450F Series friction hold-open, and 450SE Series special stop-only — to meet a wide range of application requirements.

Certifications & Compliance

  • Commercial-Grade Product
  • Suitable for Light to Medium Duty Applications
  • Brass and 300 Series Stainless Steel options provide high corrosion resistance for varied environmental conditions

Technical Specifications

  • Duty Level: Medium Duty
  • Product Group: Door Controls
  • Product Subgroup: Overhead Stops and Holders
  • Product Type: Overhead Stops and Holders - Surface Mount
  • Subcategory: Stops and Holders
  • Commercial/Residential: Commercial

Typical Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Glynn-Johnson 450 Series?

Glynn-Johnson 450 Series overhead door holders and stops are engineered to deliver professional-grade reliability across the widest variety of door types and architectural environments. With material options including brass and 300 Series stainless steel offering superior corrosion resistance, and a non-handed design that streamlines installation and inventory management, the 450 Series is the trusted choice for demanding commercial applications where consistent door control performance is essential.

Product Specs

Series:
450 Series
Duty Level:
Medium Duty
Product Group:
Door Controls
Product Subgroup:
Overhead Stops and Holders
Product Type:
Overhead Stops and Holders - Surface Mount
Subcategory:
Stops and Holders
Commercial/Residential:
Commercial
Product Category:
Door Controls
Department:
Door Hardware

Glynn-Johnson 451H-SP28 – Frequently Asked Questions

1) Is the Glynn-Johnson 450 overhead door holder handed? Do I have to specify left or right?
No hand to specify. The 450 Series surface overhead holder is non-handed, so one part number covers left and right openings, which is why contractors and distributors can stock a single size instead of a pair. It is built for single-acting doors, meaning doors that swing one direction only. A door that swings both ways is outside what this device controls.
2) What is the difference between the 450H, 450S, 450F and 450SE?
Four functions, and the choice is about whether the door needs to stay open. The 450H is hold-open: it stops the door and holds it there until someone pushes it back. The 450S is stop-only, so it limits the swing and the door closes normally with no holding. The 450F is friction hold-open, which uses friction on the arm to hold the door rather than catching at one fixed point. The 450SE is the special stop-only model. On a corridor door with a closer, stop-only is usually what you want; on a door propped open for deliveries or housekeeping, hold-open earns its keep.
3) Will a 450 Series surface overhead stop work on a door with continuous hinges or offset pivots?
Yes. The 450 Series is made to install on virtually all door and frame types, including doors on conventional butt hinges, offset pivots, continuous hinges, swing clear hinges, and other specialty hinges. The one thing the hanging method changes is sizing: butt hinge and offset pivot doors use one set of size bands and center hung doors use the next band up, so confirm the hanging method before you pick the size.
4) The Glynn-Johnson 450 is rated medium duty. What overhead stop should I use on a high traffic entrance that gets abused?
The Glynn-Johnson 450 Series is built for light to medium duty commercial applications and is carried at medium duty, so a heavily used entrance, a wind-loaded exterior door, or a dock or corridor door that gets thrown open is a case for a heavier unit. Three heavy duty surface mounted options: the Norton Rixson 7 Series Checkmate, an industrial duty surface door stop and holder with hold open function, Grade 1; the Norton Rixson 9ADJ Series Checkmate, a heavy duty adjustable surface mount stop and holder with 110 degree opening, Grade 1; and the Sargent 590, a heavy duty overhead surface mount stop/holder with bronze construction, Grade 1. All three mount to the door face and frame the same general way the 450 Series does, so the opening does not change - the device class does.
5) The architect does not want a visible arm on the door. Is there a concealed alternative to the Glynn-Johnson 450 Series?
The Glynn-Johnson 450 Series is a surface mount overhead holder and stop - the arm and track sit on the face of the door and the underside of the frame head, which is what makes it work across butt hinges, offset pivots, continuous hinges, and swing clear hinges without special door prep. For a concealed look, the ABH 4000 Series is a concealed mount overhead stop and holder with medium duty construction, and the ABH 4000RA Series is a concealed mount medium duty holder and stop with adjustable opening control. Both are the same medium duty class the 450 Series sits in, so the change is where the device lives, not what it can take. Concealed units go into the top of the door and the frame head, so confirm the doors can be prepped before you commit - on an existing opening with no prep, the surface mounted 450 Series is the path that does not send doors out for machining.
6) What is the closest equivalent from another manufacturer to a Glynn-Johnson 450 Series surface overhead stop?
The Sargent 1540 is the nearest match in the surface overhead category: a surface mount door stop/holder with a 110 degree opening, carried at medium duty and Grade 1. The Glynn-Johnson 450 Series is also a medium duty surface mounted overhead holder and stop, with provided templates that allow mounting positions from 85 to 110 degrees of opening. The working difference is how you order them. The 450 Series is specified by function - H hold-open, S stop-only, F friction hold-open, or SE special stop-only - and by door opening size range, so a facility can standardize on one series and pull stop-only units for some doors and hold-open units for others. The 1540 is a single stop/holder model. If the door already has a Sargent 1540 on it and you want the same behavior, match the 450 function to what the door is doing today rather than assuming a one-for-one part.
7) I need to set the stop angle after the doors are hung. Is the Glynn-Johnson 450 the right choice or is there something adjustable?
On the Glynn-Johnson 450 Series the opening position is established at install: the provided templates support mounting positions from 85 to 110 degrees of opening, so you pick the angle when you lay out the holes, and it is a remount to change it. If you want the opening control built into the device instead, the ABH 3300A Series is a surface mount overhead stop and holder with adjustable opening control, and the Norton Rixson 9ADJ Series Checkmate is a heavy duty adjustable surface mount stop and holder with a 110 degree opening. In concealed mount, the ABH 4000RA Series is a medium duty overhead door holder and stop with adjustable opening control. The tradeoff is scope: the 450 Series covers the angle range through the template and gives you four functions and a wide finish range in one series, while the adjustable units let a maintenance tech retune a door later without new holes.
8) Can I use a 450 Series overhead holder on an exterior door or in a coastal or wash-down environment?
Specify the base material for the environment. The 450 Series is offered in brass and in 300 Series stainless steel as well as steel, and the brass and stainless options are the ones that resist corrosion best across varied weather. For an exterior entrance, a pool corridor, or a salt air location, order a stainless or brass unit in a matching finish such as US32D satin stainless, US32 polished stainless, US4 satin brass or US10B oil rubbed bronze rather than a painted steel one.
9) What else could I buy instead of a Glynn-Johnson 450 for a medium duty surface overhead stop?
Staying at the same duty level, the Sargent 1540 is a standard duty surface mount stop and holder rated medium duty, Grade 1, with a 110 degree opening. The ABH 3300A Series is a surface mount stop and holder with adjustable opening control, and the ABH 3400 Series is a surface unit for 24 to 36 inch door frames. If all you need is friction hold-open on a narrower opening, the DORMA 701F is a standard duty surface applied friction stop for 21 to 27 inch door openings, though friction is its only function, where the 450 Series lets you pick hold-open, stop-only, friction hold-open, or special stop-only on the same platform.
10) I only need a friction stop that holds an interior office door open. How does the DORMA 701F compare to the Glynn-Johnson 450F?
The DORMA 701F is a standard duty surface applied friction stop covering a 21 to 27 inch door opening - one function, one size window. The Glynn-Johnson 450F is the friction hold-open function inside the 450 Series, which also carries H hold-open, S stop-only, and SE special stop-only, and is offered across five door opening ranges from 18 to 45 inches on butt hinges and offset pivots, or 23 1/16 to 51 inches on center hung doors. The 450 Series is non-handed, so a contractor stocking it does not have to sort left from right. For a single interior office door inside the 21 to 27 inch range, the 701F does that one job. For a floor of doors where some need friction hold-open and some need a hard stop, the 450 Series keeps the whole floor in one series and one finish.
11) Can I put a Norton Rixson 10 Series Checkmate on a door that currently has a Glynn-Johnson 450 on it?
They do the same job but they are not the same device. The Norton Rixson 10 Series Checkmate is a surface door stop/holder with a slide track arm, carried at heavy duty and Grade 1. The Glynn-Johnson 450 Series is a medium duty surface overhead holder and stop, non-handed, mounted from templates that set the opening position anywhere from 85 to 110 degrees. Because the arm and track geometry are the manufacturer's own, treat a brand change as a full device change: lay the incoming unit out to its own template rather than expecting it to pick up the holes that are there. If the reason for the swap is that the door is beating up the hardware, the Rixson move up to heavy duty is the point of it. If the door is fine and you are only replacing a worn unit, staying in the 450 Series keeps the existing mounting approach and lets you match the finish already on the opening.
12) What finishes does the Glynn-Johnson 450 Series come in so I can match the rest of the hardware in my building?
Twelve finishes on the visible components. Plated and architectural: US3 polished brass, US4 satin brass, US10 satin bronze, US10B oil rubbed bronze, US32 polished stainless, US32D satin stainless steel, and 652, a chrome-like coating. Powder coats: SP4 brass, SP10 bronze, SP313 dark bronze, SP28 aluminum, and SPBLK black. If you are standardizing a portfolio, the US numbers line up with the same BHMA finish designations used on your locks and closers, and the SP powder coats are the way to match painted frames or hit a black or dark bronze scheme.
13) Is there a tamper resistant screw option for an overhead door stop in a school or a public restroom?
Order the 450 Series with the SOC option, which supplies pin-in-socket security screws in place of the standard fasteners. That is the specification to use where the hardware is reachable by the public: schools, detention-adjacent corridors, restrooms, transit spaces. It is chosen as a device option with the unit, so add it at the time of order rather than trying to source the screws later.
14) The door already has a closer. Do I still need an overhead stop like the 450 Series?
In most cases yes. A closer controls the speed of the swing and its backcheck slows the door near the end of travel, but it is not a positive stop. The 450 Series limits the opening at a fixed point between 85 and 110 degrees, which is what protects the wall, the door face and the closer arm itself. The 450 Series was built with improved compatibility with door closers, so the two work together and the stop takes the abuse instead of the closer.
How fast can I get the Glynn-Johnson 451H-SP28 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 Glynn-Johnson 451H-SP28 come with a warranty?
Absolutely. The Glynn-Johnson 451H-SP28 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 Glynn-Johnson 451H-SP28?
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
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