1 1 2 self drilling screws

Self-tapping screws, as the name suggests, create their own thread while being inserted into a pre-drilled hole, eliminating the need for a separate tapping process. They are particularly advantageous when working with plastic, a material known for its variability in hardness, thickness, and thermal expansion properties. Stainless steel, with its inherent corrosion resistance and high tensile strength, makes an ideal choice for manufacturing self-tapping screws that can withstand harsh environments and maintain a secure grip on plastic substrates.

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A black hex head bolt features a hexagonal head that allows for easy tightening and loosening using standard tools, such as a wrench or socket. The black designation often refers to the finish applied to the bolts, which typically involves a coating such as black oxide or a similar treatment. This finish not only enhances the bolt’s appearance but also provides superior corrosion resistance, making them suitable for a variety of environments.


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