McKinney TCA2714 4-1/2 x 4-1/2 Five-Knuckle Standard Weight Concealed Bearing Full Mortise Butt Hinge
The McKinney TCA2714 is a full mortise, five-knuckle standard weight steel butt hinge featuring concealed antifriction bearings housed entirely within the knuckle barrel. This design delivers the smooth, low-friction operation of a bearing hinge while maintaining a clean, traditional barrel appearance — the bearings remain hidden from view, making the TCA2714 visually indistinguishable from a plain-bearing hinge yet functionally superior for high-cycle door applications. Also referenced as the McKinney TCA2714 4-1/2x4-1/2 concealed bearing hinge, this is a genuine McKinney product built to the exacting tolerances of the McKinney full-line catalog.
Institutional Grade Features & Benefits
- Concealed Antifriction Bearings: Bearings are recessed inside the knuckle, eliminating exposed bearing surfaces for a streamlined barrel profile while still reducing pivot friction and wear during repeated door cycles.
- Five-Knuckle Construction: The five-knuckle barrel distributes load across more contact points than a three-knuckle hinge, providing enhanced strength and stability for standard-weight door applications.
- Full Mortise Installation: Both leaves are fully mortised into the door edge and frame, producing a flush, professional installation that keeps the hinge leaves flush with the door and jamb surfaces.
- Standard Weight Steel Leaf: Steel leaves at a precise 0.134 in. gauge (per the McKinney full-line catalog) deliver the correct thickness for standard-weight door and frame applications, ensuring proper fit in mortise pockets cut to specification.
- Clean Barrel Aesthetics: The hidden bearing design preserves the classic butt hinge silhouette — well-suited for architectural environments where a traditional appearance is required.
- McKinney Heritage: McKinney is a long-established, respected name in commercial door hardware, and the TCA2714 reflects that legacy of precision manufacturing and consistent quality.
Technical Specifications
- Part Number: TCA2714
- Brand: McKinney
- Part Type: Full Mortise Butt Hinge
- Hinge Size: 4-1/2 in. x 4-1/2 in.
- Knuckle Count: Five-Knuckle
- Weight Class: Standard Weight
- Bearing Type: Concealed (Antifriction) Bearings — hidden within the knuckle barrel
- Material: Steel
- Leaf Gauge (Thickness): 0.134 in.
- Mounting Style: Full Mortise (both leaves mortised into door edge and frame)
Technical Details
| Feature | Details |
|---|---|
| Model Number | TCA2714 |
| Brand | McKinney |
| Part Type | Full Mortise Butt Hinge |
| Hinge Size | 4-1/2 in. x 4-1/2 in. |
| Knuckle Count | Five-Knuckle |
| Weight Class | Standard Weight |
| Bearing Type | Concealed Antifriction Bearings (hidden within knuckle) |
| Material | Steel |
| Leaf Gauge (Thickness) | 0.134 in. |
| Mounting Style | Full Mortise |
Documentation
- McKinney Catalog / Product Page - TCA2714
- This model is a factory option (modified barrel/tip) of the base hinge; the McKinney document library publishes the cut sheet under the base model. The catalog page above carries the option's specification.
| Brand | McKinney |
| General - US Finishes | US26D - Satin Chrome |
| Hinge Type | Full Mortise |
| Hinge Mounting | Full Mortise |
| Door Handing | Field Reversible, Field Reversible |
| Hinge Height | 4.5" Hi |
| Hinge Width | 4.5" Wi |
| Hinge Grade/Thickness | Standard Wt .119 to .146 |
| Hinge Corners | Square |
| Hinge Knuckle | 5 Knuckles |
| Base Material | Steel |
| Hinge Options | Concealed Bearing |
| Part Type | Hinge, Hinge |
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