McKinney SQ314 4-1/2 x 4-1/2 Full Mortise Standard Weight Square Barrel Stainless Steel Hinge
The McKinney SQ314 is a full mortise, standard weight butt hinge featuring a distinctive square knuckle barrel that delivers a crisp, squared architectural appearance. Finished in stainless steel and sized at a 4-1/2 x 4-1/2 inch leaf, the SQ314 is engineered for installations where a clean, modern aesthetic is required alongside reliable, commercial-grade performance. The square barrel profile — rather than the traditional rounded knuckle — sets this hinge apart visually, making it a preferred specification for contemporary architectural door hardware projects.
Institutional-Grade Features & Benefits
- Full Mortise Design: Both leaves are mortised flush into the door edge and frame, producing a clean, recessed installation that protects the hinge from damage and maintains a consistent door reveal.
- Square Knuckle Barrel: The SQ314's signature squared barrel provides a modern, angular silhouette that coordinates with contemporary square-profile door hardware and architectural metalwork.
- Standard Weight Construction: At 0.134 in. steel leaf thickness, this hinge meets the demands of standard-duty commercial door applications without the added bulk of heavy-weight variants.
- Stainless Steel Material: The inherent corrosion resistance of stainless steel makes the SQ314 well suited for environments where durability and finish longevity are priorities.
- 4-1/2 x 4-1/2 Inch Leaf Size: A widely specified commercial hinge size, compatible with standard commercial door and frame preparations for straightforward specification and procurement.
- McKinney Quality: Engineered to the exacting tolerances of the McKinney full-line catalog, ensuring consistent fit and finish across large-scale commercial and institutional projects.
Technical Details
| Feature | Details |
|---|---|
| Brand | McKinney |
| Part Number | SQ314 |
| Part Type | Butt Hinge |
| Hinge Size | 4-1/2 in. x 4-1/2 in. |
| Mounting Type | Full Mortise |
| Weight Class | Standard Weight |
| Barrel Style | Square Knuckle Barrel |
| Material / Finish | Stainless Steel |
| Gauge (Leaf Thickness) | 0.134 in. |
| Technical Reference | McKinney Full-Line Catalog |
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 | 4.5" Wi |
| Hinge Grade/Thickness | Standard Wt .119 to .146 |
| Hinge Corners | Square |
| Base Material | Stainless Steel |
| Part Type | Hinge, Hinge |
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