Self-tapping drywall screw Koelner/Rawlplug 3.5x35 mm for metal profiles is designed to fasten gypsum plasterboards to steel framing. Supplied as a single piece, the 3.5 mm diameter and 35 mm length make it suitable for typical interior drywall applications where a secure connection to metal studs or channels is required. The screw has a thread and tip geometry intended to cut into thin-gauge metal profiles and hold plasterboard panels firmly in place.
Advantages
This self-tapping screw simplifies installation by eliminating the need for pre-drilling into metal profiles, reducing installation time on standard gauge steel studs. Its dimensions are chosen for common plasterboard thicknesses combined with metal frames, providing reliable pull-out resistance when used as recommended. Supplied individually, it allows for single-screw replacements or small repairs without purchasing a full pack.
Suitable for
- Fixing gypsum plasterboard (drywall) to metal studs and channels
- Interior wall and ceiling drywall installations
- Repairing or replacing individual drywall fasteners
When it may not be suitable
This screw is intended for use with thin-gauge metal profiles and interior gypsum boards; it may not perform adequately in heavy structural applications or where loads exceed typical drywall conditions. It is not designed for use in concrete, masonry, or directly into thick structural steel without appropriate pilot holes or anchors.
Key specifications
- Diameter: 3.5 mm
- Length: 35 mm
- Type: Self-tapping screw for drywall to metal profiles
- Head style: (standard drywall) countersunk head suitable for recessed finishing
- Intended use: Interior drywall fastening to metal framing
How to use
Place the gypsum board against the metal profile and position the screw at the recommended spacing along the stud. Using a compatible screwdriver or drill with adjustable torque and an appropriate bit, drive the screw through the plasterboard and into the metal profile until the head is slightly recessed below the board surface without tearing the paper face. For best results set torque to avoid overdriving and use correct spacing and edge distances as specified for the plasterboard system.
What to consider before purchase
- Confirm metal profile thickness and compatibility with self-tapping screws of this diameter and length
- Verify the plasterboard thickness and the required screw penetration to ensure sufficient engagement in the metal profile
- Check whether corrosion resistance or special coatings are required for the installation environment
Usage recommendations
For consistent results, use a screw gun or drill with adjustable clutch and a depth-limiting attachment where available, adhere to manufacturer spacing guidelines for drywall systems, and replace any damaged screws to maintain a secure and even surface for finishing.
