McKinney SQ314 4-1/2 x 4 Standard Weight Square Barrel Stainless Steel Full Mortise Hinge
The McKinney SQ314 is a full mortise, standard weight butt hinge featuring a distinctive square knuckle barrel design that delivers a clean, squared architectural appearance. Manufactured in stainless steel, this 4-1/2 x 4 hinge is built for commercial and architectural door applications where a refined, geometric aesthetic is required alongside dependable, long-term performance. Also referenced as the McKinney SQ314 square barrel hinge, this full mortise hinge recesses flush into both the door edge and frame, producing a neat, professional installation.
Institutional Grade Features & Benefits
- Square Barrel Knuckle: The square knuckle barrel profile sets this hinge apart from round-barrel counterparts, providing a sharp, architectural look consistent with modern and contemporary door hardware specifications.
- Full Mortise Design: Mortises directly into the door edge and door frame for a flush, clean installation — the standard method on commercial hollow metal and wood doors.
- Stainless Steel Construction: Offers strong resistance to corrosion and surface wear, making the SQ314 well-suited for demanding environments where finish durability matters.
- Standard Weight Classification: Engineered for standard-weight door applications, providing the appropriate load capacity for typical commercial door assemblies without over-engineering.
- Precise Leaf Thickness: Steel leaf thickness of 0.134 in. per the McKinney full-line catalog, ensuring consistent performance and dimensional accuracy in mortise pocket installations.
- 4-1/2 x 4 Hinge Size: A widely specified commercial hinge size compatible with standard door thicknesses and common frame prep dimensions used across commercial construction projects.
- McKinney Brand Quality: McKinney is a recognized name in commercial door hardware, trusted by architects, specifiers, and contractors for consistent manufacturing tolerances and broad product availability.
Technical Details
| Feature | Details |
|---|---|
| Brand | McKinney |
| Model / Part Number | SQ314 |
| Part Type | Full Mortise Butt Hinge |
| Hinge Size | 4-1/2 x 4 |
| Barrel / Knuckle Style | Square Barrel (Square Knuckle) |
| Weight Class | Standard Weight |
| Material | Stainless Steel |
| Leaf Thickness (Gauge) | 0.134 in. |
| Installation Type | Full Mortise |
Documentation
| Brand | McKinney |
| General - US Finishes | US32D - Satin Stainless Steel/ 630 |
| Hinge Type | Square Barrel |
| Hinge Mounting | Full Mortise |
| Door Handing | Field Reversible |
| Hinge Height | 4.5" Hi |
| Hinge Width | 4.0" Wi |
| Hinge Grade/Thickness | Standard Wt .119 to .146 |
| Hinge Corners | Square |
| Base Material | Stainless Steel |
| Part Type | Hinge, Hinge |
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