McKinney 1552 Spring Hinge | 4-1/2" x 4-1/2" US32D Satin Stainless Steel
The McKinney 1552 Spring Hinge is a high-performance, self-closing architectural solution designed for the most demanding environments. Crafted from solid Stainless Steel (US32D), this full-mortise hinge combines superior corrosion resistance with a heavy-duty internal tension mechanism. It serves as a vital solution for door restoration in hospitals, laboratories, coastal apartments, and office buildings where aesthetics and fire-rated safety are paramount.
As a space-saving alternative to bulky hydraulic door closers, the 1552 series ensures that doors return to a latched position automatically. This makes it an essential solution for commercial door security and an ideal solution for door surface repair in high-moisture or sterile areas. With a .134 gauge thickness and ANSI K81081 certification, this hinge provides a dependable, maintenance-free closing force for standard-weight, medium-frequency doors.
Key Features & Benefits
- Self-Closing Efficiency: Automatically returns doors to the closed position, providing a streamlined solution for commercial door security without the need for overhead hardware.
- Satin Stainless Steel (US32D): Solid stainless steel construction offers maximum resistance to harsh cleaning chemicals and salt air, acting as a permanent solution for door edge reinforcement.
- Adjustable Spring Tension: Features an internal spring that can be fine-tuned using the included hex key to meet specific closing speed and force requirements.
- Fire-Rated Compliance: Fully meets NFPA requirements for labeled doors (requiring a minimum of two spring hinges per assembly) and is designed for rigorous life-safety standards.
- Tamper-Resistant Security: Includes a specialized locking screw to secure the tension setting, ensuring long-term reliability in public or high-traffic corridors.
Technical Details & Specifications
- Brand: McKinney (ASSA ABLOY)
- Model Number: 1552
- Dimensions: 4-1/2" x 4-1/2" (Full Mortise)
- Material: Stainless Steel
- Finish: US32D (630) Satin Stainless Steel
- Thickness: .134 Gauge
- ANSI Certification: K81081 Grade 1
- Fasteners Included: Furnished with All Wood Screws (1-1/4" x 12) and All Machine Screws (1/2" x 12-24).
Usage & Installation Guidelines
To ensure optimal performance and code compliance, adhere to the following weight-based configurations:
- Doors up to 115 lbs: Use two 1552 spring hinges paired with one equivalent size ball bearing hinge.
- Doors up to 150 lbs: Use three 1552 spring hinges to provide the necessary closing force.
Warning: Factors such as smoke gasketing, adverse wind, unbalanced air pressure, or misaligned frames can hinder latching. In these environments, adding a third spring hinge is often the most effective solution for door restoration.
Why Choose the McKinney 1552?
The McKinney 1552 is the professional’s choice for projects that demand the perfect balance of visual elegance and industrial-grade safety. By integrating the closing mechanism into the hinge itself, it offers a permanent and cost-effective solution for door security, delivering the durability of stainless steel with the precision of a certified fire-rated component.
| General - US Finishes | US32D - Satin Stainless Steel/ 630 |
| Brand | McKinney |
| Hinge Height | 4.5" Hi |
| Hinge Width | 4.5" Wi |
| Hinge Grade/Thickness | Standard Wt .119 to .146 |
| Hinge Type | Spring Hinge |
| Spring Hinge Type | Single Acting |
| Base Material | Stainless Steel |
| Hinge Corners | Square |
Recently Viewed Items