Hager 3947 Standard Spring Latch with 2-3/4" Backset and Square Corner Faceplate
Professional Passage Spring Latch Solution
The Hager 3947 Standard Spring Latch delivers reliable passage function for commercial door applications with a 2-3/4" (70mm) backset configuration. This brass construction spring latch features a 1-1/8" x 2-1/4" (29mm x 57mm) square corner faceplate and is designed for compatibility with 2500/3500/3700 Series hardware. Available in multiple finish options including US3, US4, US10B, US26, US26D and BLK to match existing door hardware.
Professional Features & Benefits
- Standard Backset Configuration: 2-3/4" (70mm) backset provides compatibility with most commercial door preparations and standard lockset installations.
- Precision Faceplate Dimensions: 1-1/8" x 2-1/4" (29mm x 57mm) square corner faceplate ensures proper fit and professional appearance in door edge mortises.
- Brass Construction: Durable brass substrate provides long-lasting performance and corrosion resistance for commercial applications.
- Series Compatibility: Designed specifically for use with Hager 2500/3500/3700 Series hardware systems for seamless integration.
- Multiple Finish Options: Available in US3, US4, US10B, US26, US26D and BLK finishes to coordinate with existing door hardware and architectural specifications.
- Passage Function: Spring latch mechanism provides smooth retraction and extension for reliable door operation without locking capability.
- Square and Round Corner Options: Faceplate available in both square and round corner configurations to match door preparation requirements.
Technical Specifications
- Commercial/Residential: Commercial
- Faceplate: 1-1/8" x 2-1/4"
- Faceplate Type: Square and round corner available
- Finishes: US3, US4, US10B, US26, US26Dand BLK
- Notes: 1-1/8" x 2-1/4" (29mm x 57mm) Faceplate
- Subcategory: Door Latches and Catches
Installation & Operation
- Review manufacturer specifications and verify door preparation requirements including door thickness, stile width, and handing as applicable to this product.
- Use manufacturer-provided templates to mark mounting hole locations accurately on door and/or frame surfaces.
- Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.
- Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications.
- Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion.
- Test device operation to verify proper function and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.
Professional Applications
- Commercial Office Buildings
- Educational Facilities
- Healthcare Institutions
- Retail Establishments
- Industrial and Warehouse Facilities
- Multi-Tenant Residential Properties
- Government and Municipal Buildings
Why Choose Hager Quality?
Hager spring latch products deliver professional-grade reliability with brass construction engineered for demanding commercial applications. The precision-manufactured 2-3/4" backset and standardized faceplate dimensions ensure consistent performance and easy integration with existing Hager hardware systems. Designed for dependable passage function where reliable door operation is essential.
Support Resources
Manufacturer Resources
Product Specs
- Subcategory:
- Door Latches and Catches
- Product Group:
- Door Trim and Accessories
- Product Subgroup:
- Door Latches and Catches
- Product Type:
- Spring Latch
- Commercial/Residential:
- Commercial
- Product Model:
- 3947
- Product Function:
- Passage
- Face Plate:
- 1-1/8" x 2-1/4"
- Product Substrate:
- Brass
- Product Category:
- Door Trim and Accessories
- Department:
- Door Hardware