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McKinney T4A3386 NRP Heavy Weight Hinge | 5" x 4-1/2" Non-Ferrous
The McKinney T4A3386 NRP is a top-tier, industrial-grade architectural hinge designed for maximum security in high-traffic commercial environments. This heavy weight, non-ferrous 5-knuckle hinge features a robust .190 gauge thickness, specifically engineered to support oversized or extra-heavy doors. As a premier solution for door restoration, it provides the structural integrity required for demanding facilities like hospitals, schools, and government offices.
Advanced Security with NRP (Non-Removable Pin)
The NRP (Non-Removable Pin) feature is a critical security innovation for modern access control. It utilizes a hidden set screw within the hinge barrel that is completely inaccessible when the door is closed. This provides:
- Enhanced Security: Prevents intruders from removing the door by tapping out the hinge pins.
- Optimal for Outward Swinging Doors: Essential for exterior doors where hinge pins are exposed to the public side, acting as a vital solution for commercial door security.
- Vandal Resistance: Designed to withstand tampering while maintaining a clean, professional architectural aesthetic.
Key Performance Features
- Corrosion-Resistant Non-Ferrous Base: Available in Stainless Steel (ANSI A5111) or Brass (ANSI A2111). This construction provides a permanent solution for door edge reinforcement, resisting rust in coastal or high-moisture areas.
- Oil-Impregnated Bearings (TA Prefix): Features self-lubricating, non-ferrous bearings that ensure maintenance-free, silent operation and a longer wear life by resisting clogging and hinge failure.
- Fire Rating Specification: Note that only the US32D Satin Stainless Steel finish is UL-listed and approved for use on fire-rated door assemblies (up to 3 hours). Brass materials are not approved for fire-rated openings.
- Heavy-Duty Classification: Built to endure rigorous, frequent opening and closing cycles without compromising performance or alignment.
Technical Details & Specifications
- Brand: McKinney (ASSA ABLOY)
- Model Number: T4A3386 NRP
- Dimensions: 5" Height x 4-1/2" Width (Heavy Weight .190 Thickness)
- Pin Type: Non-Rising Stainless Steel Pin with Button Tips and NRP Set Screw.
- Standard Fasteners: Furnished with All Wood Screws (1-1/4" x 12) and All Machine Screws (1/2" x 12-24).
Why Choose the McKinney T4A3386 NRP?
The McKinney T4A3386 NRP is the professional's choice for high-security retrofits and new construction where reliability is non-negotiable. Whether you are performing a solution for door surface repair or securing a high-frequency perimeter, the combination of a heavy-weight non-ferrous body and a tamper-proof pin ensures your opening remains safe and functional for decades. It delivers a permanent and cost-effective solution for door security that meets the most rigorous architectural standards.
| General - US Finishes | US32D - Satin Stainless Steel/ 630 or US10B - Oil Rubbed Bronze |
| Brand | McKinney |
| Hinge Height | 5.0" 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 | Stainless Steel, Brass |
| Hinge Corners | Square |
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