Screws are essential elements in the field of construction and assembly. Whether for wood, steel, or other materials, they are available in many types and formats, each having specific applications. Understanding the characteristics of different screws allows you to choose the one that best suits your project.
Screws by their thread
Wood screws
Wood screws are designed to easily penetrate wooden materials without causing cracks. Hexagonal heads, often used for more robust fastenings, require a suitable tightening tool, while hollow heads allow for a more discreet screwing.
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Steel screws
Steel screws are generally made of stainless steel, offering exceptional resistance to corrosion. Countersunk screws are suitable for surfaces where flush fitting with the material is desired, avoiding protrusions.
Screws by their drive type
Screws with hexagonal drive
Screws with hexagonal drive are popular in industrial applications. They are available in steel and stainless steel, ensuring excellent resistance to twisting. The choice between steel and stainless steel depends on the requirements for corrosion resistance and the operating environment.
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Screws with cross drive
Cross screws, such as those with a Phillips drive, offer excellent maneuverability thanks to their centering, which prevents the screwdriver tip from slipping. They come in both small and large diameters, thus adapting to various fastening needs.
Screws by their length and diameter
Screws for medium-sized works
For medium-sized projects, screws with threaded shafts are ideal due to their adjustable length. Wood bolts, on the other hand, are designed for larger assemblies requiring high strength.
Screws for robust fastenings
For applications requiring robust fastenings, there are products specifically designed for high torque tightening. These screws are generally used in large industrial assemblies where strength is paramount.
Screws by their specific applications
Screws designed for outdoor applications
Screws for fastening to wood outdoors are often treated to withstand the elements. They are characterized by a sharp thread, ideal for fastening in hard or composite woods.
Screws suitable for fastening in composite materials
Screws for composite materials, such as hex screws, offer great flexibility for multiple fastenings. They are often used in constructions requiring increased resistance in composite materials.
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| Type of screw | Material | Drive type | Applications |
|---|---|---|---|
| Wood screws | Stainless Steel, Zinc | Torx, Pozidriv | Wood assembly, furniture |
| Metal screws | Steel | Phillips, Hexagonal | Mechanical, metal structures |
| Sheet metal screws | Steel, Stainless Steel | Torx, Pozidriv | Sheet fastening, roofing |
| Self-tapping screws | Stainless Steel | Phillips, Hexagonal | Automotive construction, construction industry |