Product Description
Introducing our 3-Knuckle Standard Duty Spring Hinge. The three-knuckle construction of the hinge increases its durability and strength for a long-lasting option. It’s perfect for doors that require automatic closing since it offers a self-closing action. This enhances not only the door security, but convenience. Our spring hinge is best for both residential and light commercial settings. Upgrade to PDQ for top quality and performance you can trust. Connect with one of our sales reps today to find the right door hardware solution for you.
Docs & Downloads:
Discover the features and benefits of our standard-duty hinges in the list below.
- Made with high-quality steel or stainless steel
- 134" thickness
- Choose from 6 finishes: 600(P0), 605(US3), 613E, 619(US15), 630(32D), 652(US26D) (Product Specific)
- Non-removable pin with a set screw (3/32" hex) for added security
- 1/16" clearance in the closed position
Upgrade your doors with PDQ’s spring hinge. Connect with a sales rep in your region to learn more.
Features & Benefits
Certifications
Our standard-duty hinges meet door industry standards. This shows their quality and safety.
- NFPA 80-2010, Section 6.4.3.1 for fire-rated performance
- Designed to meet K8107-1F or K5107-1F standards
- UL Listed
Choose PDQ’s certified 3-knuckle hinges for your next project.
FAQs
What is a spring hinge and how does it close a door?
A spring hinge uses internal spring tension built into the hinge barrel to pull the door shut automatically, no separate surface-mounted door closer required. PDQ's SH hinge uses 3-knuckle construction and is UL Listed to standards K8107-1F/K5107-1F, purpose-built for self-closing applications.
Do I still need a door closer if I install a spring hinge?
No, that's the point of the SH hinge: the spring inside the barrel provides the automatic closing force, letting you meet code requirements for self-closing doors without the cost or surface-mounted appearance of a separate closer. It suits light-duty, residential, and light commercial self-closing openings.
Is the PDQ spring hinge approved for fire doors?
Yes, it's UL Listed and complies with NFPA 80-2010, Section 6.4.3.1, meeting the fire-rated performance and self-closing requirements many code-mandated fire door assemblies require. Its non-removable pin, secured by a 3/32" hex set screw, adds a security layer common across PDQ's hinge line.
What is 3-knuckle construction and why does it matter here?
It means the hinge barrel is formed from three interlocking segments rather than five, a lighter-duty joint suited to the spring mechanism's self-closing function rather than heavy load-bearing. PDQ pairs this with its Grade 2 hinges for standard doors that don't need a surface closer.
Specifications
Discover specifications of PDQ’s 3-knuckle hinge in the chart below. Contact a sales rep near you to learn more.
| MATERIALS: |
• STEEL — Applications: Interior doors, non-corrosive environments. MATERIALS: PACKAGING: FASTENERS: CERTIFICATIONS, LISTINGS, COMPLIANCES: • STAINLESS STEEL — Applications: Exterior, doors, corrosive environments |
| FASTENERS: |
• All hinges packed with Machine Screws (12-24 x 1/2” FHMS) and Wood Screws (12 x 1-1/4” FHWS) |
| CERTIFICATIONS, LISTINGS, COMPLIANCES: |
• Conforms with the requirements of NFPA 80-2010, Section 6.4.3.1. |
| WARRANTY: |
• Five (5) year limited warranty |
Download our Section 08710 Specification here.
Finishes
Explore the available finishes for our spring hinge listed below. Choose the best look for your next project.
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