Pemko Offset Full Mortise Heav...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$544.02
$444.70

Pemko Offset Full Mortise Heavy Duty Grade 1 Continuous Geared Hinge

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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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OS FM Series

The OS FM Series Offset Full Mortise Continuous Geared Hinge is perfect for creating more clearance in doorways, particularly in hospitals or correctional facilities. The offset allows doors to swing wide, moving the door further out of the opening to create space for the passage of carts, dollies, and other wide loads.
 
 
Features
  • Heavy duty
  • Offset allows the door to swing wide, moving the door further out of the opening
  • Must be used with a square edged door on hinge side
  • Hollow metal door and frame manufacturers’ standard is acceptable
  • Certain door and frame conditions may require an extra 1/32"-1/16" clearance
  • Excessive clearance on fire rated assemblies may violate the requirements for NFPA 80
  • Custom lengths available
  • Special FirePins are only required on 3-Hour (A-Label) assemblies.
Benefits
  • Offset provides extra clearance by moving the door out of the opening
  • Creates space for the passage of carts, dollies, and other wide loads
  • Prevents damage to the door and frame
  • Extends life of doors and frames in heavy cart traffic environments
  • Removal of hinge reinforcements in the door and frame is not advised

Specifications

  • Bearing Spacing: 3"
  • Grade: Grade 1
  • Hinge Material: Aluminum
  • Hinge Mounting Type: Full Mortise
  • Hinge Strength: Heavy Weight
  • Handing: Non-handed
  • Fastener: Teks
  • Fastener Type: Self Drilling
  • Maximum Door Thickness: 1 3/4"
  • Minimum Door Thickness: 1 3/4"
  • Maximum Door Width: 4'
  • Maximum Hinge Length: 10'
  • Minimum Hinge Length: 79"
  • Maximum Swing: 180°
  • Minimum Hinge Clearance: 5/16"
  • Weight: 1.2lbs. per foot
  • Product Note: **Door edge must be square on hinge side. For beveled edge doors, additional clearances are required.**
Certifications
  • Health Product Declaration (HPD)
  • UL 10C - Standard for Positive Pressure Fire Tests of Door Assemblies
  • ANSI/BHMA Standard A156.26
 
RESOURCES & DOWNLOADS

Pemko Installation Instructions

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

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.