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Hager 1279 3-1/2" x 3-1/2" Full Mortise - Plain Bearing Hinge, Steel with Plated Finish
The Hager 1279 is a standard-duty Full Mortise Plain Bearing Hinge designed for reliability and value in residential and light commercial applications. Engineered for 1-3/4" thick doors, this steel hinge is the industry's go-to solution for medium-weight doors that experience low-frequency traffic. With its ANSI A8133 certification and precision-stamped square corners, the Hager 1279 provides a clean, professional fit and long-lasting performance in controlled environments.
Reliable Standard-Duty Engineering
The Hager 1279 series focuses on structural integrity and ease of installation for openings that do not require the continuous load-bearing support of ball bearings.
- Durable Steel Construction: Crafted from high-strength steel with a matching steel pin, providing a rigid pivot point for interior residential and office doors.
- Plain Bearing Design: Ideal for low-frequency service doors, such as closets, utility rooms, or private offices, where a cost-effective yet durable hinge is needed.
- Non-Rising Removable Pin: Features a specialized pin with a button tip and plug designed to stay seated during operation while remaining removable for door maintenance or painting.
- Full Hardware Kit Included: Every box is furnished with a complete set of all wood screws (1-1/4" x 12 FPHW) and all machine screws (1/2" 12-24 FPHM), allowing for seamless mounting to either wood or metal frames.
Technical Specifications
| Feature | Details |
| Model | Hager 1279 |
| Hinge Type | Full Mortise / Plain Bearing |
| Dimensions | 3.5" x 3.5" (89 mm x 89 mm) |
| Metal Thickness | .129 Gauge |
| Material | Steel with Steel Pin |
| Corner Style | Square Corners |
| ANSI Standard | ANSI A8133 |
| Door Thickness | Standard 1-3/4" (44 mm) |
| Frequency | Low Frequency / Medium Weight |
| Pin Style | Non-rising removable pin with button tip and plug |
Important Application Notes
To ensure the safety and longevity of your hardware, please observe the following industry standards regarding plain bearing hinges:
- Fire Door Compliance: For UL Fire Rated Doors, building codes require the use of ball bearing hinges (such as the Hager BB1279) rather than plain bearing models.
- Door Closers: If your door is equipped with a surface-mounted or overhead closer, ball bearing hinges are highly recommended to handle the additional lateral tension and weight.
- Finish Options: This steel hinge is available in a variety of high-quality plated finishes to match your existing lever sets and deadbolts.
Why Choose the Hager 1279?
For contractors, developers, and homeowners, the Hager 1279 represents a high-intent hardware choice that balances budget with institutional-grade quality. It is the perfect specification for residential interior build-outs and light commercial renovations where a 3.5" x 3.5" footprint is required. By choosing Hager, you are investing in a legacy of hardware excellence that ensures your doors hang level and operate smoothly for years to come.
Ideal Applications:
- Residential Interiors: High-quality pivot points for bedrooms, baths, and pantries.
- Light Commercial Offices: Low-traffic interior office doors and supply closets.
- Apartment Build-outs: Cost-effective, durable hinges for multi-family housing projects.
- Wood or Metal Frames: Versatile fasteners included for any frame type.
| General - US Finishes | US26D - Satin Chrome or US26 - Polished Chrome or US15 - Satin Nickel or US3 - Polished Brass or US10 - Satin Bronze or US10B - Oil Rubbed Bronze or USP - Prime Painted |
| Brand | Hager |
| Hinge Height | 3.5" Hi |
| Hinge Width | 3.5" Wi |
| Hinge Grade/Thickness | Standard Wt .119 to .146 |
| Hinge Type | Full Mortise |
| Hinge Options | Plain Bearing |
| Base Material | Steel |
| Hinge Corners | Square |
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