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Glynn-Johnson 79 Surface Extra Heavy-Duty Overhead Door Holder
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PRODUCT INFORMATION

Catalog Cuts / Specs

Extra heavy-duty surface overhead door holder/stop

  • Designed to meet the demands of high-traffic industrial applications. Simple to install.

  • Offers rugged durability and ease of installation. The surface applied door and jamb brackets provide reliable door control, yet require minimal door and frame preparation.

  • Provide a durable hold-open mechanism that can be turned off, allowing the unit to function as a shock-absorbing stop. The hold-open tension is simply adjusted incrementally for increased or decreased holding power by turning the nut at the end of the bar.

  • Hold-open (H) models provide a selective hold-open function with easy-to-adjust tension. A simple 90° rotation of the roller mechanism disables the hold-open function, allowing the unit to serve as a shock-absorbing stop. The hold-open function provides a convenient method of holding the door open at a predetermined position for short or long periods of time, permitting an unobstructed traffic flow through the opening.

  • Stop-only (S) When the hold-open function is not a requirement, stop-only models provide a reliable method of door control. Stop-only models provide the same shock-absorbing capability as hold-open models. The stop-only model may be used on fire doors.

  • Classification: Stop-only models are classified as Miscellaneous fire door accessories. This classification applies to use on either hollow metal fire doors or wood fire doors.

  • Material substrate: Constructed primarily of brass and 300 Series stainless steel substrates, with several components fabricated of steel treated to resist corrosion. 3/4" diameter stainless steel bar in US32D finish. Spring, washer and nut provided in a clear, zinc finish.

  • - Non-handed
    - Single-acting doors
    - Interior/exterior applications
    - Durable
    - Easy to install
    - Improved corrosion resistance

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