McKinney T4A3386 Heavy Weight Hinge | 4-1/2" x 4-1/2" Non-Ferrous

The McKinney T4A3386 is an industrial-strength, heavy-duty architectural hinge engineered for the most demanding high-traffic commercial environments. As a heavy weight, non-ferrous 5-knuckle hinge, it is specifically designed to support the physical stress of extra-heavy wood or metal doors in schools, hospitals, and government facilities. This hinge is a premier solution for door restoration, offering a robust .180 gauge thickness that far exceeds the durability of standard commercial hardware.

Key Features & Performance

• High-Frequency Performance: Designed for constant use, these hinges easily handle the rigorous opening and closing cycles of public institutions without performance degradation.
  
• Security NRP (Non-Removable Pin): Features an NRP set screw hidden within the barrel, preventing the pin from being removed when the door is closed—a vital solution for commercial door security.
  
• Corrosion-Resistant Non-Ferrous Base: Available in Stainless Steel (ANSI A5111) or Brass (ANSI A2111), providing a permanent solution for door edge reinforcement in environments prone to moisture or oxidation.
• Oil-Impregnated Bearings: The TA Prefix indicates self-lubricating, non-ferrous bearings that ensure maintenance-free, silent operation while resisting clogging and hinge failure.
  
• Fire Rating Note: The US32D Satin Stainless Steel finish is UL-listed and approved for use on fire-rated doors for up to 3 hours, whereas brass-based materials are not approved for fire-rated openings.

Technical Details & Specifications

• Brand: McKinney (ASSA ABLOY)
• Model Number: T4A3386
• Dimensions: 4-1/2" x 4-1/2" (Heavy Weight .180 Thickness)
• Base Materials: Stainless Steel or Brass
• Bearing Type: Ball Bearing (Oil Impregnated)
• Pin Type: Non-Rising Stainless Steel Pin with Button Tips
• Fasteners Included: Furnished with All Wood Screws (1-1/4" x 12) and All Machine Screws (1/2" x 12-24). 
  

Why Choose the McKinney T4A3386?

The McKinney T4A3386 is the professional's choice when reliability is non-negotiable. Whether you are performing a solution for door surface repair or outfitting a new high-security wing, the non-ferrous construction ensures your hardware remains functional and aesthetically polished for decades. It offers a permanent and cost-effective solution for door security, delivering the industrial-grade strength required for modern architectural standards.

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BABAA Compliant -- meets the Build America Buy America Act domestic-content preference for federal-funded infrastructure projects; compliance documentation available.