<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>
<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>
Aside from choosing the right materials, regular maintenance is essential. Periodically cleaning hardware surfaces to remove salt, dust, and accumulated water can effectively delay rust formation. Additionally, opt for accessories designed with drainage holes or channels to help eliminate water buildup and reduce the risk of corrosion.
This exhibition represents a dual breakthrough for 3H Building Hardware in terms of brand influence and market expansion. It not only strengthens the company’s position in the domestic market but, more importantly, opens the door to the ASEAN market.
CZM19
3H INC.
Item No. | CZM19 |
Size | 223.5*30*63mm |
Application | Casement door |
Length of fork | Optional |
Material | Aluminum alloy |
Surface Treatment | Powder coating |
Color | Optional |
Components | screws |
Function | durable,easy-installation,smooth-operation |
Package | Box |
Specification

Product Description
1. Selecting fixing screw based on the sash thickness.
2. Screw specification:M5 x Sash thickness +12mm.
3. Square shaft length:Sash thickness +46mm
4. The left and right version of handle are the same.
Performance index:
Operating standard:JG/T 124-2017 Construction Door and Window Hardware-Multi-point Handle
Repeatedly opening and closing for 25,000 times.
No load operation force is less than 40N,operation moment is less than 2N.m.
The handle can remain undamaged under 25N.m operation moment,the deviation from the handle
shank curve is less than 5 degree.
Scope of application
Casement doors,sliding doors of home and office buildings.
Item No. | CZM19 |
Size | 223.5*30*63mm |
Application | Casement door |
Length of fork | Optional |
Material | Aluminum alloy |
Surface Treatment | Powder coating |
Color | Optional |
Components | screws |
Function | durable,easy-installation,smooth-operation |
Package | Box |
Specification

Product Description
1. Selecting fixing screw based on the sash thickness.
2. Screw specification:M5 x Sash thickness +12mm.
3. Square shaft length:Sash thickness +46mm
4. The left and right version of handle are the same.
Performance index:
Operating standard:JG/T 124-2017 Construction Door and Window Hardware-Multi-point Handle
Repeatedly opening and closing for 25,000 times.
No load operation force is less than 40N,operation moment is less than 2N.m.
The handle can remain undamaged under 25N.m operation moment,the deviation from the handle
shank curve is less than 5 degree.
Scope of application
Casement doors,sliding doors of home and office buildings.
