Knauf Drywall Screws for Metal Profiles 3.5x35 mm are professional-grade fasteners engineered for the efficient and secure attachment of gypsum boards to metal framing. These self-drilling screws are designed to penetrate metal profiles without the need for pre-drilling, streamlining the installation process for interior wall and ceiling systems. With a diameter of 3.5 mm and a length of 35 mm, they provide optimal holding power and structural stability for standard drywall applications.
Advantages
The primary advantage of these screws is their self-drilling capability, which significantly reduces labor time and effort during construction. The precision-engineered tip ensures a clean entry into metal profiles, minimizing the risk of material damage or slippage. Manufactured to high quality standards, these screws offer excellent corrosion resistance and durability, ensuring that the drywall remains firmly attached over time. Their design promotes a flush finish, which is essential for achieving smooth, professional-looking surfaces before painting or wallpapering.
Suitable for
- Fastening drywall boards to metal profiles
- Interior wall construction
- Ceiling installation projects
- Renovation and partition wall assembly
These screws may not be suitable for fastening drywall to wooden studs, as the thread design is specifically optimized for metal profiles. They are also not intended for heavy-duty structural steel applications where specialized high-tensile bolts are required.
Key specifications
- Diameter: 3.5 mm
- Length: 35 mm
- Material: Metal
- Standard: DIN 7504N
- Quantity: 200 pieces
How to use
To use these screws, position the drywall board against the metal profile. Using a power screwdriver with a depth-limiting attachment, drive the screw through the drywall and directly into the metal profile. The self-drilling tip will penetrate the metal automatically. Ensure the screw head is driven slightly below the surface of the board to allow for proper finishing with joint compound, but avoid driving it too deep to prevent damaging the paper layer of the drywall.
What to consider before purchase
- Verify the thickness of your metal profiles to ensure the 35 mm length is appropriate.
- Ensure you have a compatible power screwdriver with a suitable bit.
- Calculate the total number of screws required based on the spacing recommendations for your specific drywall system.
Usage recommendations
For the best results, maintain a consistent screw spacing of approximately 20 to 30 cm along the profiles. Always ensure the screw is perpendicular to the surface to maintain maximum holding strength.
