The threaded rod plays a central role in the installation of photovoltaic systems. It ensures secure fastening on different roof types and substrates.
What is a threaded rod?
A threaded rod is a special type of screw with two thread types. It has a wood or sheet metal thread for anchoring in the substrate and a metric thread for attaching mounting systems.
Construction of the threaded rod
The threaded rod combines two functions:
- Wood or sheet metal threads: For a secure hold in the substrate.
- Metric thread: For attaching brackets and rails.
Advantages of the threaded rod in PV mounting
The use of threaded rods offers many advantages:
- Suitable for wood, trapezoidal sheet metal and sandwich panels.
- Easy and quick assembly.
- Durable and stable connection.
How is a threaded rod installed?
Assembly takes place in just a few steps:
- Pre-drilling the substrate (depending on the material).
- Tighten the screw using a socket wrench or cordless screwdriver.
- Attach mounting rails or brackets to the metric thread.
Tips for safe assembly
Use high-quality materials and ensure the screw is correctly sized to guarantee maximum stability.
Conclusion: The right choice for PV systems
Threaded rods are an essential component for the safe and efficient installation of photovoltaic systems. Their versatility and stability make them indispensable.
Referenced terms and sources
This existing glossary article was reviewed and approved on 14 October 2026. Time-sensitive information still refers to its original publication context unless the article states otherwise. It does not replace installation instructions or confirm compatibility with a particular roof tile model.
Machine-assisted translation. The German version remains available.
Data sheet and installation guideOriginal source