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Hager 1279 4.0" x 4.0" Full Mortise - Plain Bearing Hinge, Steel with Plated Finish
The Hager 1279 is a standard-duty Full Mortise Plain Bearing Hinge engineered for reliability and long-term performance in both residential and light commercial environments. Designed for 1-3/4" thick doors, this steel hinge is the ideal solution for medium-weight doors that experience low-frequency traffic. Whether you are outfitting a new office suite or upgrading home interior doors, the Hager 1279 provides a clean, professional square corner fit and institutional-grade durability.
Reliable Low-Frequency Performance
The Hager 1279 is optimized for openings that require steady support without the high-traffic requirements of ball bearings.
- Durable Steel Construction: Crafted with a high-strength steel base and a matching steel pin to ensure structural integrity.
- Plain Bearing Operation: A cost-effective design perfect for doors that are opened and closed a moderate number of times daily, such as private offices or residential rooms.
- Non-Rising Removable Pin: Features a specialized pin with a button tip and plug that stays securely in place during use but can be easily removed for door maintenance.
- Convenient 3-Pack: Packaged in sets of three to simplify project planning and ensure consistent hardware across a single door opening.
Technical Specifications
| Feature | Details |
| Model | Hager 1279 |
| Hinge Type | Full Mortise / Plain Bearing |
| Dimensions | 4.0" x 4.0" (102 mm x 102 mm) |
| Metal Thickness | .129 Gauge (Standard Weight) |
| Material | Steel with Steel Pin |
| Knuckles | 5-Knuckle Design |
| ANSI Standard | ANSI A8133 |
| Door Thickness | Standard 1-3/4" (44 mm) |
| Corner Style | Square Corners |
| Pack Size | 3 Hinges per Box |
Hardware & Mounting Details
| Component | Fastener Type |
| Wood Screws | 1-1/4" x 12 FPHW (Included) |
| Machine Screws | 1/2" 12-24 FPHM (Included) |
| Pin Style | Non-rising removable pin with button tip and plug |
| Origin | Made in the USA |
Why Choose the Hager 1279?
For contractors and facility managers, the Hager 1279 represents a high-intent hardware choice that balances budget with proven architectural quality. Its full mortise design allows for a flush fit, while the included hardware for both wood and metal frames offers maximum versatility.
Important Application Note: Per industry standards and fire safety codes, UL Fire Rated Doors and doors equipped with automatic closers should utilize ball bearing hinges (such as the Hager BB1279) rather than plain bearing models.
Ideal Applications:
- Residential Build-outs: High-quality pivot points for bedrooms, closets, and laundry rooms.
- Light Commercial Offices: Low-traffic interior office doors and supply closets.
- Retrofit Projects: Standard 4" x 4" template for easy replacement of existing hardware.
- Wood or Metal Frames: Versatile fasteners included for seamless installation on any surface.
| General - US Finishes | US26D - Satin Chrome or US26 - Polished Chrome or US15 - Satin Nickel or US3 - Polished Brass or US10B - Oil Rubbed Bronze or USP - Prime Painted |
| Brand | Hager |
| Hinge Height | 4.0" Hi |
| Hinge Width | 4.0" 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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