McKinney T4A3786 INT NRP Heavy Weight Interim Hinge | 5" to 4-1/2" Conversion US26D
The McKinney T4A3786 INT NRP Interim Hinge is a heavy-duty, problem-solving hardware solution designed for the most demanding commercial retrofit applications. This specialized full-mortise hinge acts as a precision solution for door restoration, allowing contractors to convert a 5" high hinge preparation on a door or frame to a 4-1/2" preparation on the opposite leaf. It is the ideal choice for high-traffic institutional settings where mismatched hardware preps otherwise require costly frame replacements or extensive welding.
Engineered for extreme durability, the T4A3786 features a robust .190 gauge thickness and oil-impregnated bearings. These one-piece, non-ferrous, self-lubricating bearings provide a maintenance-free solution for door edge reinforcement, ensuring long-lasting wear and resistance to corrosion, clogging, and hinge failure. With the integrated Non-Removable Pin (NRP) feature, this hinge serves as a critical solution for commercial door security, protecting out-swinging doors from unauthorized tampering and pin removal.
Key Features & Performance
- Interim Conversion Leaf: Seamlessly bridges 5" and 4-1/2" hinge preparations, providing a clean and professional solution for door restoration in mismatched openings.
- Heavy Weight Construction: Built with a .190 gauge thickness, specifically designed to support heavy-duty, high-traffic doors in schools, hospitals, and government buildings.
- Oil-Impregnated Bearings: Self-lubricating technology offers a permanent solution for door security by preventing hinge seizing and ensuring consistent, smooth operation.
- NRP High-Security Locking: The Non-Removable Pin set screw is inaccessible when the door is closed, making it an essential solution for door security on exterior-facing corridors.
- Fully Reversible: Supplied with no-hole plugs and a symmetrical trim, this hinge can be easily field-reversed for left-hand or right-hand door swings.
- Satin Chrome Finish (US26D): The high-quality plated finish acts as a durable remodeling scar plate, resisting physical wear while matching standard commercial architectural finishes.
Technical Details & Specifications
- Brand: McKinney (ASSA ABLOY)
- Model Number: T4A3786 INT NRP
- Conversion Size: 5" Height to 4-1/2" Height (Full Mortise)
- Security Feature: NRP (Non-Removable Pin)
- Bearing Type: Oil-Impregnated (TA Prefix)
- Hinge Knuckles: 5 Knuckle
- Thickness: Heavy Weight .190 Gauge
- ANSI Number: A8111
- 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?
The McKinney T4A3786 INT NRP is the industry standard for high-traffic retrofitting. Instead of enduring the downtime of structural frame repairs, this interim hinge provides a permanent and cost-effective solution for door security and hardware compatibility. Its heavy-duty steel construction and NRP security deliver industrial-grade reliability, providing facility managers and contractors with total peace of mind in high-occupancy environments.
| General - US Finishes | US26D - Satin Chrome |
| Brand | McKinney |
| Hinge Height | 5.0" Hi, 4.5" Hi |
| Hinge Width | 4.5" Wi |
| Hinge Grade/Thickness | Heavy Wt .180 to .190 |
| Hinge Type | Interim, Full Mortise |
| Hinge Options | NRP (Non Removable Pin), Ball Bearing |
| Base Material | Steel |
| Hinge Corners | Square |
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