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McKinney TA2731 4-1/2 x 4 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 x 4 inches. Designed and manufactured by McKinney -- one of the most trusted names in commercial and architectural door hardware -- the TA2731 delivers reliable, consistent performance in full mortise hinge applications. This hinge is Approved for NFPA 80 fire-rated openings.
Institutional Grade Features & Benefits
- Full Mortise Design: The TA2731 is engineered for full mortise installation, meaning both leaves are recessed flush into the door edge and frame for a clean, professional appearance and secure mechanical connection.
- Two-Knuckle Construction: The two-knuckle configuration provides a streamlined, architectural profile suited to applications where a refined aesthetic is as important as durable function.
- Standard Weight Rating: Sized and constructed as a standard weight hinge, the TA2731 is appropriate for doors within the weight and frequency-of-use parameters typical of standard commercial door applications.
- Fire Rating: Approved for NFPA 80 fire-rated openings.
- McKinney Quality: Backed by McKinney's long-standing reputation for precision manufacturing and consistent quality in architectural butt hinges used across commercial, institutional, and industrial door openings.
- 4-1/2 x 4 Inch Dimensions: This standard commercial hinge size is widely specified by architects and contractors for a broad range of door widths and weights within the standard weight category.
Technical Details
| Feature | Details |
|---|---|
| Brand | McKinney |
| Model / Part Number | TA2731 |
| Part Type | Butt Hinge |
| Function / Style | Full Mortise, Two-Knuckle, Standard Weight |
| Hinge Size | 4-1/2 x 4 Inches |
| Certification | 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 | 4.0" 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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