STERK Kvadrat 1707 Door Handles – Durability and Reliable Everyday Performance
STERK Kvadrat 1707 – Modern Design with Universal Appeal
STERK Kvadrat 1707 Door Handles have been designed for users seeking durable, functional, and aesthetically refined door hardware. Their geometric shape blends seamlessly with both modern and classic interiors, making them a practical addition to any space.
The Kvadrat 1707 model is an excellent choice for houses, apartments, offices, and public buildings where durability, everyday comfort, and timeless style are essential.
Solid Construction and Proven Quality
For years, the STERK brand has remained committed to high manufacturing standards, using durable materials and proven engineering solutions that ensure long-lasting performance while maintaining excellent value for money.
STERK Door Handles are equipped with:
• double self-leveling metal springs
• handles permanently integrated with metal mounting adapters
• robust construction resistant to intensive use
• durable mounting system ensuring long-term stability
The Kvadrat 1707 model complies with the PN-EN 1906:2012 standard, achieving:
• Category 4 of use
• durability exceeding 200,000 operating cycles (Class 7)
• Corrosion Resistance Class 3
• Operation Type A – spring-assisted mechanism
The product also holds a hygienic certificate, making it suitable for high-traffic environments.
Fire Resistance and High Corrosion Protection
STERK Kvadrat 1707 Door Handles have been tested in accordance with the PN-EN 1634-1+A1:2018 standard and are suitable for installation on EI30 fire-rated doors.
Testing confirmed 30 minutes of fire integrity and insulation performance. Additionally, a 96-hour salt spray test demonstrated high corrosion resistance, achieving Class 3 performance.
These features make the model suitable for residential buildings, offices, hotels, schools, and other public facilities.
Long-Lasting Everyday Comfort
Double self-leveling springs and solid metal mounting adapters ensure smooth handle operation, structural stability, and outstanding comfort during everyday use.
Key advantages:
• smooth and silent operation
• high resistance to intensive daily use
• long-term structural stability
• durable metal construction
• quality confirmed by testing and certifications
What Is Included in the STERK Kvadrat 1707 Door Handles Set?
The set includes everything required for installation:
• pair of handles (left and right) integrated with metal mounting adapters
• 2 cover rosettes, 9 mm thick
• 8 × 8 mm handle spindle
• 2 M4 through bolts
• 2 Allen screws
• 3 mm Allen key
The complete set allows for quick installation and many years of reliable operation.
More information: https://door-handles.com/