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Types of screws

May 20, 2023

Screws are an essential hardware item used for fastening materials together. They come in a wide variety of types, sizes, and materials, each with specific properties and applications. Here are some of the most common screw types:

 

1. Wood screws - These screws are designed for use in wood and have a coarse thread that grips the material tightly. They come in a variety of lengths and widths, and the head can be flat, round, or oval.

 

2. Machine screws - These screws are used with nuts or tapped holes in machinery or electronics. They have a fine thread and come in different lengths and diameters.

 

3. Sheet metal screws - These screws are used for fastening thin materials, such as sheet metal, plastic, or fiberglass. They have a sharp point and can be self-tapping.

 

4. Lag screws - These are large screws with a hex head that is used for attaching heavy objects to wood. They have a coarse thread that provides a strong grip, and they are available in various lengths and diameters.

 

5. Self-tapping screws - These screws have a sharp point and a thread that cuts into the material, allowing them to be used without the need for pre-drilling. They are often used for attaching sheet metal, plastics, and other materials.

 

6. Concrete screws - These screws are designed for use in concrete, brick, or other masonry materials. They have a special thread design and are made of materials such as steel or stainless steel to provide strength and durability.

 

7. Drywall screws - These screws are specially designed for use with drywall, gypsum board, or plasterboard. They have a fine thread and a sharp point that easily penetrates the material.

 

In addition to the types mentioned above, there are many other screw types, including security screws, tamper-proof screws, and specialty screws designed for unique applications. Choosing the right type of screw is essential for ensuring a secure and durable fastening.

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