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McKinney T4A3786 NRP Heavy Weight Hinge | 4-1/2" x 4-1/2" Steel
The McKinney T4A3786 NRP is an industrial-strength heavy weight bearing hinge designed for the most demanding high-traffic openings in commercial construction. Featuring a massive .180 gauge thickness, this 5-knuckle, full mortise hinge is a premier solution for door restoration on extra-heavy wood or metal doors. Equipped with both Oil Impregnated Bearings and a Non-Removable Pin, it offers a perfect synergy of effortless operation and high-level perimeter security.
High-Security NRP (Non-Removable Pin)
The NRP (Non-Removable Pin) feature is a critical security innovation for modern facility management. It utilizes a hidden set screw driven into the hinge barrel that is completely inaccessible when the door is closed.
- Anti-Tamper Protection: Prevents unauthorized removal of the door by ensuring the pin cannot be tapped out from the exterior.
- Essential for Outward Swinging Doors: Provides a vital solution for commercial door security on exterior doors where hinge barrels are exposed to the public side.
- Forced Entry Prevention: Safeguards against intruders attempting to bypass locking hardware through hinge manipulation.
Advanced Oil Impregnated Bearings (TA Prefix)
The TA Prefix signifies McKinney’s high-performance self-lubricating bearing system, essential for heavy-weight applications.
- Maintenance-Free Life: One-piece, non-ferrous bearings gradually release lubricant, ensuring even longer-lasting wear without manual greasing.
- Environmental Resilience: Engineered to resist clogging, corrosion, and friction-related drag, preventing premature hinge failure in high-abuse environments.
- Smooth Performance: Acts as a permanent solution for door edge reinforcement, maintaining a silent and consistent swing for the life of the opening.
Technical Details & Specifications
- Brand: McKinney (ASSA ABLOY)
- Model: T4A3786 NRP
- Dimensions: 4-1/2" Height x 4-1/2" Width (Heavy Weight .180 Thickness)
- Base Material: High-strength plated steel
- ANSI/BHMA A156.1 Compliant: Corresponds to industry-standard ANSI A8111.
- UL Fire Rated: Certified for use on fire-rated door assemblies (3-hour).
- Fasteners Included: Furnished with All Wood Screws (1-1/4" x 12 FPHW) and All Machine Screws (1/2" x 12-24 FPHM).
Why Choose the McKinney T4A3786 NRP?
The McKinney T4A3786 NRP is the definitive professional choice for projects requiring a "no-fail" hardware solution. Whether you are performing a solution for door surface repair or outfitting a new commercial perimeter, its combination of heavy-weight steel, self-lubricating bearings, and tamper-proof security ensures your openings remain safe and functional for decades.
| General - US Finishes | US26D - Satin Chrome or US10B - Oil Rubbed Bronze or US10BE - Oil Rub Bronze Equal |
| Brand | McKinney |
| Hinge Height | 4.5" Hi |
| Hinge Width | 4.5" Wi |
| Hinge Grade/Thickness | Heavy Wt .180 to .190 |
| Hinge Type | Full Mortise |
| Hinge Options | Ball Bearing, NRP (Non Removable Pin) |
| Base Material | Steel |
| Hinge Corners | Square |
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