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2. Length and Diameter The dimensions of the fasteners should suit the thickness of the chipboard. Generally, fasteners should penetrate at least half the thickness of the material to ensure a secure hold.

Self-drilling screws, also known as Tek screws or self-tapping screws, are engineered with a drill bit tip that allows them to penetrate materials without the need for a separate drilling operation. This feature is particularly advantageous when working with thick steel, as it reduces the time required for assembly and helps ensure a secure, tight fit.