Glynn-Johnson 81 Series Heavy Duty Surface Overhead Door Holders and Stops

Glynn-Johnson 81 Series Heavy Duty Surface Overhead Door Holders and Stops

The Glynn-Johnson 81 Series are surface-mounted overhead door holders and stops engineered to deliver rugged, heavy-duty door control for commercial applications. Featuring a jointed-arm design that provides the most effective stop mechanism available, the 81 Series offers superior shock-absorbing capacity to protect doors, frames, and hardware from impact damage. Available in two models — the 81H Series hold-open model and the 81S Series stop-only model — and offered in heavy gauge brass, 300 Series stainless steel, and steel, the 81 Series provides the broadest range of finishes in the industry while maintaining compatibility with most door closers.

Key Features

• Jointed-Arm Stop Mechanism: The jointed-arm design provides the most effective stop mechanism available, delivering superior shock-absorbing capacity to protect doors, frames, and all associated hardware.
• Surface-Mounted Installation: The shock absorber bracket is surface mounted — typically with sex bolts — and the jamb bracket mounts to the stop of the frame, requiring a minimum of door and frame preparation.
• Non-Handed Design: Simplifies installation and stocking by eliminating the need to specify handing, reducing inventory complexity for commercial projects.
• Two Available Models: The 81H Series provides a reliable hold-open function, while the 81S Series delivers heavy-duty stop-only performance — both available in four standardized sizes to fit different door applications.
• Broad Material Selection: Available in heavy gauge brass, 300 Series stainless steel, and steel, offering the broadest range of finishes in the industry to suit diverse architectural requirements.
• Corrosion Resistance: Brass and 300 Series stainless steel construction offer the highest resistance to corrosion for longer-lasting performance across a variety of weather conditions; other base materials are suitable for normal interior use.
• Door Closer Compatibility: Improved compatibility with door closers for better door control and reduced wear and tear on all door hardware components.
• Flexible Options: Available options include the angle jamb bracket (J), blade stop shims (SHIM), and pin-in-socket security screw package (SOC) for extended configuration flexibility.

Technical Specifications

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

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 81 Series?

Glynn-Johnson 81 Series overhead door holders and stops are built to commercial-grade standards with heavy gauge brass, 300 Series stainless steel, and steel construction options, ensuring long-term durability across a wide range of environments. The jointed-arm design and surface-mounted configuration deliver the most effective shock-absorbing stop mechanism available, making the 81 Series a trusted choice for demanding commercial door control applications where protecting doors, frames, and hardware is essential.