Pemko OS-FM Offset Full Mortis...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$544.02
$444.70

Pemko OS-FM Offset Full Mortise Continuous Geared Hinge Grade 1 Heavy Duty

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Model: COS83FM-HD1
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$544.02
$444.70
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Pemko OS-FM Offset Full Mortise Continuous Geared Hinge Grade 1 Heavy Duty

Professional Offset Continuous Hinge for Maximum Door Clearance

The Pemko OS-FM Series Offset Full Mortise Continuous Geared Hinge delivers Grade 1 heavy-duty performance with specialized offset design for applications requiring maximum door clearance. This aluminum continuous hinge accommodates doors up to 1-3/4"; thick and 4' wide, with hinge lengths from 79"; to 10' maximum. The offset configuration moves doors further out of the opening during swing operation, creating essential clearance space for cart and equipment passage in healthcare and institutional environments.

Professional Features & Benefits

  • Offset Door Clearance: Specialized offset design moves the door further out of the opening during swing, creating maximum clearance space for carts, dollies, and wide equipment passage.
  • Grade 1 Heavy-Duty Construction: ANSI/BHMA A156.26 Grade 1 rated aluminum construction provides exceptional durability for high-traffic commercial applications.
  • Full Mortise Installation: Full mortise mounting with 3"; bearing spacing ensures secure installation and smooth operation with 180� maximum swing capability.
  • Flexible Sizing Options: Available in lengths from 79"; minimum to 10' maximum, accommodating doors up to 4' wide and 1-3/4"; thick with custom lengths available.
  • Fire-Rated Assembly Compatible: UL 10C listed for positive pressure fire tests with special FirePins required only on 3-Hour A-Label assemblies.
  • Self-Drilling Fasteners: Includes Teks self-drilling fasteners for efficient installation at 1.2 pounds per foot weight specification.
  • Square Edge Door Requirement: Engineered for square-edged doors on hinge side with 5/16"; minimum hinge clearance for optimal performance.

Professional Applications

  • Healthcare Facilities and Hospitals
  • Correctional and Institutional Facilities
  • Commercial Buildings with Cart Traffic
  • Educational Facilities
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose Pemko Quality?

Pemko OS-FM continuous hinges deliver professional-grade reliability with Grade 1 heavy-duty aluminum construction rated under ANSI/BHMA A156.26 standards. UL 10C fire test certification and Health Product Declaration (HPD) documentation demonstrate commitment to safety and environmental responsibility. Engineered for demanding commercial applications where dependable performance and maximum door clearance are essential for operational efficiency.

Product Documentation & Resources

Manufacturer Resources

Product Specs

Subcategory:
Continuous Hinges
Grade:
Grade 1
Product Group:
Door Hinges and Pivots
Product Subgroup:
Continuous Hinges
Product Type:
Pin and Barrel Continuous Hinges
Commercial/Residential:
Commercial
Product Model:
OS-FM
Product Category:
Door Hinges and Pivots
Department:
Door Hardware

Pemko COS83FM-HD1 – Frequently Asked Questions

How fast can I get the Pemko COS83FM-HD1 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 Pemko COS83FM-HD1 come with a warranty?
Absolutely. The Pemko COS83FM-HD1 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 Pemko COS83FM-HD1?
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 Pemko COS83FM-HD1 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.