STERK Kvadrat 1706 Door Handles – Durability and Everyday Comfort
STERK Kvadrat 1706 – Universal Design for Every Interior
STERK Kvadrat 1706 Door Handles have been designed for users looking for durable, functional, and aesthetically refined door hardware. Their clean, simple shape blends perfectly with both modern and classic interior styles. The versatile design makes this model an excellent choice for apartments, houses, offices, hotels, schools, and public buildings.
High-Quality Craftsmanship and Reliable Construction
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
• a robust construction designed for intensive everyday use
• a durable mounting system ensuring long-term stability
The Kvadrat 1706 model has been tested according to 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 and is suitable for high-traffic environments.
Certified Fire Resistance and Corrosion Protection
STERK Kvadrat 1706 Door Handles comply with the PN-EN 1634-1+A1:2018 standard, making them suitable for installation on EI30 fire-rated doors.
Testing confirmed 30 minutes of fire integrity and insulation performance. In addition, 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.
Everyday Comfort and Long-Term Performance
Double self-leveling springs and solid metal mounting adapters provide smooth handle operation and outstanding long-term reliability.
Key advantages:
• smooth and silent operation
• high resistance to intensive daily use
• long-lasting structural stability
• durable metal mounting components
• quality confirmed by independent testing and certifications
What Is Included in the STERK Kvadrat 1706 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/