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>
85 series
3H INC.
| Products Name | Door Lock Body Sash Lock |
| Brand Name | 3H |
| Model Number | 85 series |
| Material | Stainless Steel |
| Color available | customization |
| Surface treatment | Nature |
| Spec. | details as the pic shown |
| Packing | Carton |
| Delivery Time | 30 days |
| Start Port | Foshan Port |
| Place of Origin | Foshan, Guangdong |
| Certification | ISO |
| OEM/ODM Availability | OEM/ODM Availability |
| Supply Ability | 100000pcs per month |
| MOQ | 100pcs |
| Application | casement door |
| Remark | configuration as drawing, and double check by sample |
Specification

Product Description
Application:wooden door,metal door,rebated or flush wooden door
Material:forend,lever flouer,latch,deadbolt and striking plate:stainless steel
Lock case:Galvanized steel
Deadbolt pocket:Plastic
Forend:square or round forend
Lever flouer:8*8mm
Advantages
Smooth Operation: Roller latches feature a rolling mechanism that allows for a smooth and quiet closing action. This reduces the noise and friction commonly associated with traditional latch systems, providing a more pleasant user experience.
Adjustable Latching: Many roller latches offer adjustable mechanisms, allowing for precise alignment and improved fit with the strike plate. This flexibility helps accommodate various door sizes and ensures a secure latch even with slight door misalignments.
Durability: Roller latch mechanisms are typically built from robust materials like steel or brass, making them highly durable and resistant to wear and tear. This durability extends the lifespan of the latch and reduces the need for frequent replacements.
Ease of Use: The design of roller latches simplifies the process of opening and closing doors. They often require less force to engage and disengage compared to other locking mechanisms, which can be particularly beneficial in high-traffic areas or for users with limited strength.
Enhanced Security: Roller latches provide a secure latch without the need for complex locking mechanisms. When installed correctly, they create a strong and reliable closure that helps keep doors securely closed while still allowing for easy access when needed.
| Products Name | Door Lock Body Sash Lock |
| Brand Name | 3H |
| Model Number | 85 series |
| Material | Stainless Steel |
| Color available | customization |
| Surface treatment | Nature |
| Spec. | details as the pic shown |
| Packing | Carton |
| Delivery Time | 30 days |
| Start Port | Foshan Port |
| Place of Origin | Foshan, Guangdong |
| Certification | ISO |
| OEM/ODM Availability | OEM/ODM Availability |
| Supply Ability | 100000pcs per month |
| MOQ | 100pcs |
| Application | casement door |
| Remark | configuration as drawing, and double check by sample |
Specification

Product Description
Application:wooden door,metal door,rebated or flush wooden door
Material:forend,lever flouer,latch,deadbolt and striking plate:stainless steel
Lock case:Galvanized steel
Deadbolt pocket:Plastic
Forend:square or round forend
Lever flouer:8*8mm
Advantages
Smooth Operation: Roller latches feature a rolling mechanism that allows for a smooth and quiet closing action. This reduces the noise and friction commonly associated with traditional latch systems, providing a more pleasant user experience.
Adjustable Latching: Many roller latches offer adjustable mechanisms, allowing for precise alignment and improved fit with the strike plate. This flexibility helps accommodate various door sizes and ensures a secure latch even with slight door misalignments.
Durability: Roller latch mechanisms are typically built from robust materials like steel or brass, making them highly durable and resistant to wear and tear. This durability extends the lifespan of the latch and reduces the need for frequent replacements.
Ease of Use: The design of roller latches simplifies the process of opening and closing doors. They often require less force to engage and disengage compared to other locking mechanisms, which can be particularly beneficial in high-traffic areas or for users with limited strength.
Enhanced Security: Roller latches provide a secure latch without the need for complex locking mechanisms. When installed correctly, they create a strong and reliable closure that helps keep doors securely closed while still allowing for easy access when needed.


