This standard applies to common window types such as casement windows (inward or outward opening), top-hung windows, and bottom-hung windows.
The lock cylinder is the core of anti-theft security and directly determines the lock's protection level. Among residential lock cylinders, C-grade lock cylinders currently offer the highest security and the longest resistance to technical unlocking, making them the preferred choice for families emphasizing theft prevention.
floor spring is a "door closer" hidden within the floor. It not only controls opening and closing but also allows adjustment of the closing speed and force. It holds the door steadily in place, preventing it from swinging uncontrollably in the wind.
Complies with the technical requirements of the national standard GB/T 37267-2018 "General Technical Conditions for Seismic Bracing and Hanging Systems in Buildings". The seismic bracing systems undergo comprehensive testing, including appearance, dimensions and tolerances, coating thickness, load-bearing performance of seismic connecting components, load-bearing performance of pipeline connecting components, cyclic loading performance, fatigue performance, fire resistance, and corrosion resistance.
<p>the sequential door closer ensures the doors close in the "right order," while the door closer ensures they "close properly." Understanding their differences is key to selecting the right components that meet safety standards while enhancing usability.for reliable door control hardware, consider 3H Hardware</p>
HHJ10
3H INC.
The 3H INC. HHJ10 is a high-performance hinge engineered for superior strength and reliability in professional fenestration projects. Below are the core technical details that ensure it meets rigorous industry standards.
Item No. | HHJ10 |
Size | 250*44*52.5mm |
Application | Hung windows |
Load Bearing | 100KG/pair for window |
Material | 304 stainless steel |
Surface Treatment | Natural |
Color | Optional |
Components | screws |
Function | durable,easy-installation,smooth-operation |

Certified Standard: This durable window hinge is manufactured in compliance with the JG/T125-2017 operating standard, guaranteeing consistent quality and reliability for your projects.
Proven Endurance: Rigorously cycle-tested for long-term performance, the HHJ10 operates smoothly through 30,000 opening and closing cycles with less than 2mm of sag.
Installation Ready: Each order includes the necessary 304 stainless steel screws, ensuring a secure and straightforward installation process.
Upgrade your window systems with the 3H INC. HHJ10, a Concealed Hinge for window applications that combines strength, aesthetics, and efficiency.
Exceptional Load Capacity: This heavy-duty casement hinge securely supports window sashes up to 100KG per pair, making it an ideal choice for large or heavy inward-opening windows without compromising safety or stability.
Premium 304 Stainless Steel Construction: Built from high-grade 304 stainless steel, the HHJ10 offers outstanding durability and corrosion resistance. Its natural finish ensures long-term performance and a clean, modern look.
Designed for Smooth, Efficient Operation: Experience consistently smooth window function and a streamlined installation. This hinge is engineered for ease of installation, helping to reduce on-site labor time. All necessary screws are included for convenience.
Seamless Profile Integration: As a concealed hinge, the HHJ10 is designed for a perfect fit with 9/13 series profiles, delivering a clean, unobtrusive finish that enhances the final product's aesthetic.
The 3H INC. HHJ10 window hinge is engineered for specific, high-performance applications to ensure flawless integration and long-term reliability. Understanding its ideal use cases is key to maximizing performance.
Primary Window Types: Expertly designed as an inward window hinge for hung windows and inward-opening casement windows. Its design as a Concealed Window Hinge provides a clean, modern aesthetic ideal for contemporary architecture. Please note: This hinge is not recommended for outward-opening windows.
Heavy-Duty Support: Confidently specify the HHJ10 for projects involving large or heavy sashes. It is rated for a substantial load-bearing capacity of 100KG per pair, providing robust support and operational safety.
Profile System Integration: This hinge ensures a precise fit with standard 9/13 series window profiles. This guaranteed compatibility simplifies the manufacturing workflow and contributes to a smooth, efficient installation process.
Material Suitability: Constructed from high-grade 304 stainless steel, the HHJ10 is an excellent choice for projects requiring superior durability and resistance to corrosion, ensuring longevity even in demanding environments.
The 3H INC. HHJ10 window hinge is crafted exclusively from premium materials to guarantee exceptional strength and performance in demanding fenestration applications. This focus on quality ensures your window assemblies meet the highest standards of durability and structural integrity.
The hinge’s natural finish highlights the quality of the stainless steel while offering a clean, professional aesthetic suitable for modern designs. For project-specific requirements, custom color options are available.
Review the detailed material and finish specifications below.
| Specification | Details |
|---|---|
| Base Material | Stainless Steel |
| Material Grade | 304 |
| Surface Finish | Natural |
| Color Options | Custom colors available upon request. |
Choose the 3H INC. HHJ10 window hinge for projects where long-term reliability and strength are paramount. This heavy-duty component is meticulously engineered to exceed industry standards, ensuring your installations stand the test of time.
| Specification | Performance & Durability Benefit |
|---|---|
| High Load Capacity | Confidently supports heavy window sashes with a maximum load bearing of 100KG per pair, ensuring structural integrity for large-scale applications. |
| Material Grade | Constructed from 304 stainless steel, providing superior corrosion resistance and robust durability for a long service life. |
| Cycle Testing | Proven to withstand 30,000 opening/closing cycles with minimal sag (less than 2mm), guaranteeing consistent, smooth operation for years. |
| Reliable Function | Engineered for easy installation and flawless performance, this durable hinge ensures your finished windows operate smoothly without severe deformation or damage. |
Ensure a perfect fit and optimal performance for your 3H INC. HHJ10 casement hinge. Accurate measurement is critical for a successful installation that meets professional standards. Follow this guide for precision.
First, confirm the window's operation type. The HHJ10 is specifically engineered for side-hung, inward-opening casement windows. Proper placement on the side of the casement frame is essential for achieving the intended smooth pivot motion and durability.
For retrofits or ensuring correct specification, precise measurements are required.
Hinge Length: Carefully measure the length of the hinge track that attaches to the main window frame.
Hinge Width: Measure the width of the hinge leaf at its widest point. This dimension is crucial for correct alignment.
Before beginning installation, cross-reference your measurements with the official 3H INC. HHJ10 technical data. This final check ensures the hinge will meet the project's load-bearing requirements and deliver the reliable performance your clients expect.
When your projects demand precision, durability, and expert support, 3H INC. is the ideal partner. We are committed to providing the highest quality components for your window and door systems.
Professional One-Stop Solutions: Streamline your procurement by partnering with us. We offer comprehensive solutions, from design consultation to a full range of accessories like the Window Hinge HHJ10, to fulfill all your project's hardware needs.
Deep Industry Expertise: Benefit from our extensive experience as a leading supplier in the window and door hardware industry. Our specialists possess the knowledge to help you select the ideal hardware for superior performance and compatibility.
Dedicated Technical Support: Your project's success is our top priority. Our team of hardware experts is available to provide detailed technical guidance and assist with orders, ensuring you choose the right components for optimal function.
Uncompromising Quality: Depend on the quality and durability of our products. Each window hinge is engineered to meet rigorous performance standards, giving you confidence in the longevity and safety of your installations.
Q: What industry standard does the 3H INC. HHJ10 window hinge comply with?
A: The HHJ10 window hinge is manufactured to meet the JG/T125-2017 operating standard. Adherence to this specification ensures you are using a high-quality, reliable component that meets established performance and safety benchmarks for your projects.
Q: How durable is the HHJ10 inward window hinge under long-term use?
A: The HHJ10 is engineered for exceptional durability. It has been rigorously tested to withstand 30,000 repeated opening and closing cycles. After this extensive testing, the hinge demonstrates outstanding resilience with sash sag (ptotic amount) measuring less than 2mm, and it continues to operate normally without severe deformation or damage, proving its reliability for demanding applications.
The 3H INC. HHJ10 is a high-performance hinge engineered for superior strength and reliability in professional fenestration projects. Below are the core technical details that ensure it meets rigorous industry standards.
Item No. | HHJ10 |
Size | 250*44*52.5mm |
Application | Hung windows |
Load Bearing | 100KG/pair for window |
Material | 304 stainless steel |
Surface Treatment | Natural |
Color | Optional |
Components | screws |
Function | durable,easy-installation,smooth-operation |

Certified Standard: This durable window hinge is manufactured in compliance with the JG/T125-2017 operating standard, guaranteeing consistent quality and reliability for your projects.
Proven Endurance: Rigorously cycle-tested for long-term performance, the HHJ10 operates smoothly through 30,000 opening and closing cycles with less than 2mm of sag.
Installation Ready: Each order includes the necessary 304 stainless steel screws, ensuring a secure and straightforward installation process.
Upgrade your window systems with the 3H INC. HHJ10, a Concealed Hinge for window applications that combines strength, aesthetics, and efficiency.
Exceptional Load Capacity: This heavy-duty casement hinge securely supports window sashes up to 100KG per pair, making it an ideal choice for large or heavy inward-opening windows without compromising safety or stability.
Premium 304 Stainless Steel Construction: Built from high-grade 304 stainless steel, the HHJ10 offers outstanding durability and corrosion resistance. Its natural finish ensures long-term performance and a clean, modern look.
Designed for Smooth, Efficient Operation: Experience consistently smooth window function and a streamlined installation. This hinge is engineered for ease of installation, helping to reduce on-site labor time. All necessary screws are included for convenience.
Seamless Profile Integration: As a concealed hinge, the HHJ10 is designed for a perfect fit with 9/13 series profiles, delivering a clean, unobtrusive finish that enhances the final product's aesthetic.
The 3H INC. HHJ10 window hinge is engineered for specific, high-performance applications to ensure flawless integration and long-term reliability. Understanding its ideal use cases is key to maximizing performance.
Primary Window Types: Expertly designed as an inward window hinge for hung windows and inward-opening casement windows. Its design as a Concealed Window Hinge provides a clean, modern aesthetic ideal for contemporary architecture. Please note: This hinge is not recommended for outward-opening windows.
Heavy-Duty Support: Confidently specify the HHJ10 for projects involving large or heavy sashes. It is rated for a substantial load-bearing capacity of 100KG per pair, providing robust support and operational safety.
Profile System Integration: This hinge ensures a precise fit with standard 9/13 series window profiles. This guaranteed compatibility simplifies the manufacturing workflow and contributes to a smooth, efficient installation process.
Material Suitability: Constructed from high-grade 304 stainless steel, the HHJ10 is an excellent choice for projects requiring superior durability and resistance to corrosion, ensuring longevity even in demanding environments.
The 3H INC. HHJ10 window hinge is crafted exclusively from premium materials to guarantee exceptional strength and performance in demanding fenestration applications. This focus on quality ensures your window assemblies meet the highest standards of durability and structural integrity.
The hinge’s natural finish highlights the quality of the stainless steel while offering a clean, professional aesthetic suitable for modern designs. For project-specific requirements, custom color options are available.
Review the detailed material and finish specifications below.
| Specification | Details |
|---|---|
| Base Material | Stainless Steel |
| Material Grade | 304 |
| Surface Finish | Natural |
| Color Options | Custom colors available upon request. |
Choose the 3H INC. HHJ10 window hinge for projects where long-term reliability and strength are paramount. This heavy-duty component is meticulously engineered to exceed industry standards, ensuring your installations stand the test of time.
| Specification | Performance & Durability Benefit |
|---|---|
| High Load Capacity | Confidently supports heavy window sashes with a maximum load bearing of 100KG per pair, ensuring structural integrity for large-scale applications. |
| Material Grade | Constructed from 304 stainless steel, providing superior corrosion resistance and robust durability for a long service life. |
| Cycle Testing | Proven to withstand 30,000 opening/closing cycles with minimal sag (less than 2mm), guaranteeing consistent, smooth operation for years. |
| Reliable Function | Engineered for easy installation and flawless performance, this durable hinge ensures your finished windows operate smoothly without severe deformation or damage. |
Ensure a perfect fit and optimal performance for your 3H INC. HHJ10 casement hinge. Accurate measurement is critical for a successful installation that meets professional standards. Follow this guide for precision.
First, confirm the window's operation type. The HHJ10 is specifically engineered for side-hung, inward-opening casement windows. Proper placement on the side of the casement frame is essential for achieving the intended smooth pivot motion and durability.
For retrofits or ensuring correct specification, precise measurements are required.
Hinge Length: Carefully measure the length of the hinge track that attaches to the main window frame.
Hinge Width: Measure the width of the hinge leaf at its widest point. This dimension is crucial for correct alignment.
Before beginning installation, cross-reference your measurements with the official 3H INC. HHJ10 technical data. This final check ensures the hinge will meet the project's load-bearing requirements and deliver the reliable performance your clients expect.
When your projects demand precision, durability, and expert support, 3H INC. is the ideal partner. We are committed to providing the highest quality components for your window and door systems.
Professional One-Stop Solutions: Streamline your procurement by partnering with us. We offer comprehensive solutions, from design consultation to a full range of accessories like the Window Hinge HHJ10, to fulfill all your project's hardware needs.
Deep Industry Expertise: Benefit from our extensive experience as a leading supplier in the window and door hardware industry. Our specialists possess the knowledge to help you select the ideal hardware for superior performance and compatibility.
Dedicated Technical Support: Your project's success is our top priority. Our team of hardware experts is available to provide detailed technical guidance and assist with orders, ensuring you choose the right components for optimal function.
Uncompromising Quality: Depend on the quality and durability of our products. Each window hinge is engineered to meet rigorous performance standards, giving you confidence in the longevity and safety of your installations.
Q: What industry standard does the 3H INC. HHJ10 window hinge comply with?
A: The HHJ10 window hinge is manufactured to meet the JG/T125-2017 operating standard. Adherence to this specification ensures you are using a high-quality, reliable component that meets established performance and safety benchmarks for your projects.
Q: How durable is the HHJ10 inward window hinge under long-term use?
A: The HHJ10 is engineered for exceptional durability. It has been rigorously tested to withstand 30,000 repeated opening and closing cycles. After this extensive testing, the hinge demonstrates outstanding resilience with sash sag (ptotic amount) measuring less than 2mm, and it continues to operate normally without severe deformation or damage, proving its reliability for demanding applications.
