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McKinney TA2731 4-1/2 x 4-1/2 Two-Knuckle Standard Weight Full Mortise Butt Hinge
The McKinney TA2731 is a full mortise, two-knuckle, standard weight butt hinge measuring 4-1/2 inches by 4-1/2 inches. Manufactured by McKinney -- a trusted name in commercial and architectural door hardware -- the TA2731 is designed for full mortise door installations where the hinge leaves are recessed flush into both the door edge and the door frame. This hinge is Approved for NFPA 80 fire-rated openings.
Institutional Grade Features & Benefits
- Full Mortise Design: Both leaves are mortised into the door and frame for a clean, flush installation that is the standard for commercial-grade door assemblies.
- Two-Knuckle Construction: The two-knuckle barrel configuration is a defining characteristic of the TA2731, providing a distinct aesthetic profile while maintaining reliable pivot operation.
- Standard Weight Rating: Engineered as a standard weight hinge, the TA2731 is appropriately specified for doors within the standard weight range, offering a balance of durability and material efficiency.
- 4-1/2 x 4-1/2 Inch Dimensions: This size is widely specified for commercial and institutional doors, providing ample bearing surface and compatibility with common door and frame preparations.
- Fire Rating: Approved for NFPA 80 fire-rated openings.
- McKinney Quality: McKinney has a long-standing reputation as a premier manufacturer of commercial door hinges, and the TA2731 reflects that heritage in its construction and finish quality.
Technical Details
| Feature | Details |
|---|---|
| Brand | McKinney |
| Model Number | TA2731 |
| Part Type | Butt Hinge |
| Hinge Size | 4-1/2 in. x 4-1/2 in. |
| Mounting Type | Full Mortise |
| Knuckle Configuration | Two-Knuckle |
| Weight Class | Standard Weight |
| Fire Rating | Approved for NFPA 80 fire-rated openings |
| Gauge (Thickness) | 0.134 in. |
Gauge (thickness): 0.134 in. -- the exact steel leaf thickness for this weight class and leaf height, per the McKinney Full-Line Catalog (AADSS1010289).
Documentation
| General - US Finishes | US26D - Satin Chrome or US26 - Polished Chrome or BSP - Black Suede Power Coat or US15 - Satin Nickel or US10 - Satin Bronze or US10B - Oil Rubbed Bronze |
| Brand | McKinney |
| Hinge Type | Full Mortise |
| Hinge Mounting | Full Mortise |
| Hinge Height | 4.5" Hi |
| Hinge Width | 4.5" Wi |
| Hinge Grade/Thickness | Standard Wt .119 to .146 |
| Hinge Corners | Square |
| Hinge Knuckle | 2 Knuckles |
| Base Material | Steel |
| Part Type | Hinge |
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