Screws are one of the most versatile and frequently used fasteners in the construction, industrial, and DIY sectors. They enable stable connections and are available in countless variations to meet a wide range of requirements. Whether wood, metal, plastic, or concrete – there's a suitable screw for every material. In this article, you'll learn everything about the different types of screws, their properties, applications, and advantages.
What are screws?
Screws are mechanical fasteners consisting of a threaded shank and a head. They are used to connect or fasten components together. Screwing the threaded end into a material creates a force-fit connection that can also be loosened again if necessary. Screws are available in numerous shapes, sizes, and materials, offering flexible solutions for a wide variety of applications.
Types of screws
The wide variety of screws allows for their use in various industries and projects. The most common types of screws include:
1. Wood screws
Wood screws are specifically designed for joining wooden components. They have a pointed thread that easily screws into wood, ensuring a strong connection. Wood screws are frequently used for furniture, construction, and interior finishing.
2. Metal screws
Metal screws are designed for joining metal parts. They have a precise thread and are often combined with nuts or washers. These screws are used in mechanical engineering, electrical engineering, and metal construction.
3. Concrete screws
Concrete screws are suitable for fastening in concrete or masonry. They cut their thread directly into the substrate and offer extremely strong holding power. These screws are frequently used for load-bearing structures, railings, or facade systems.
4. Self-drilling screws
Self-drilling screws have an integrated drill tip, eliminating the need for pre-drilling. They are ideal for metal profiles, sheets, or other materials where quick assembly is required.
5. Special screws
Specialty screws such as solar screws, facade screws, or drywall screws are designed for specific applications. They meet special requirements such as corrosion resistance, thermal stability, or aesthetic demands.
Properties of screws
High-quality screws are characterized by the following properties:
- Load-bearing capacity: Screws offer a stable and durable connection that can withstand great forces.
- Corrosion resistance: Materials such as stainless steel or galvanized steel protect against rust and weathering.
- Flexibility: Screws can be used in different materials.
- Repairability: Screw connections can be easily loosened and reattached if necessary.
- Versatility: Screws are suitable for a wide variety of applications, from furniture making to industry.
Applications of screws
Screws are indispensable in almost all areas of daily life and technology:
1. Construction
In construction, screws are used for load-bearing structures, roof systems, facades, and railings. Their stability makes them ideal for heavy-duty connections.
2. Photovoltaics
Screws play a central role in the installation of solar power systems. They securely fasten rails, modules, and other components, ensuring long-term stability.
3. Mechanical Engineering
In mechanical engineering, screws ensure the secure connection of machine parts. They offer the high precision and load-bearing capacity required in demanding environments.
4. Interior finishing
In interior design, screws are used for assembling furniture, shelves, or partitions. Their versatility enables creative and functional solutions.
5. DIY
Screws are indispensable for DIY projects. They enable the easy assembly of components and contribute to the stability of DIY projects.
Advantages of screws
The use of screws offers numerous advantages:
- Easy assembly: Screws can be inserted quickly and easily.
- Cost efficiency: Their longevity reduces maintenance and replacement costs in the long term.
- Safety: Screws offer stable and durable connections.
- Sustainability: Screws can be recycled and reused.
- Flexibility: They are suitable for various materials and applications.
Tips for choosing the right screws
Choosing the right screw depends on the requirements of your project:
- Material: Choose corrosion-resistant materials for outdoor use.
- Load capacity: Pay attention to the maximum load-bearing capacity of the screw.
- Type: Wood, metal or concrete screws should be chosen according to the area of application.
- Surface: Galvanized or coated screws offer additional protection against rust.
Conclusion: Screws as a universal solution
Screws are indispensable fasteners used in numerous industries and applications. Their versatility, stability, and ease of use offer a reliable solution for every project. Selecting and using the right screws is crucial to ensuring a secure and long-lasting connection – whether in construction, industry, or DIY projects.
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