Screws constitute a fundamental part of any DIY or construction project. Here INDEX – A Perfect Fixing looks at the wide variety of types available and how users ensure they choose the right screw.
D epending on their size, thread, head or tip, different types of screws are effective for different purposes. For instance, a fundamental part of a screw is its head and drive, which together determine the strength and torque of a screw. Truss Head Self Drilling Screws
There are a variety of different types of head and drive types available within the market, including:
In addition to the different screw heads that are on the market, it is also fundamental to know about the different uses each one has according to the material the user will be working with or the particular features that apply. Some of the most common types of screw are detailed below:
Types of screws according to material
Another thing to bear in mind when choosing a screw for any project is the material used. Taking this classification into account, different screws are suitable for different surfaces. The most common are steel screws with a biochromatic or zinc coated finish, recommended for interiors as they have an average level of corrosion resistance. If work is to take place outdoors, stainless steel screws (A2 and A4) are the best option as they are highly corrosion resistant in outdoor environments and/or in coastal areas. Additionally, as we have indicated before, biochromatic screws are suitable for projects with wood if they are going to be visible as they make the project more aesthetically pleasing.
Within this same point, it is important to consider the different categories and levels of corrosion in order to make the right choice as shown in the following table:
Therefore, in heated spaces with low humidity and dry or cold areas, we recommend opting for classification C1. However, for spaces with frequent condensation and warm, subtropical areas, the C5 corrosion category is perfect.
In short, the choice of the different types of screw will depend on the characteristics of each application. It is important to be aware of their differences to find the screw that will perform best in each case. At INDEX – A Perfect Fixing we specialise in fixings that suit customers’ needs and have a wide range of screws for all types of application.
Will joined Fastener + Fixing Magazine in 2007 and over the last 15 years has experienced every facet of the fastener sector - interviewing key figures within the industry and visiting leading companies and exhibitions around the globe.
Will manages the content strategy across all platforms and is the guardian for the high editorial standards that the Magazine is renowned.
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