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Wafer head screws play a pivotal role in various assembly and fastening applications across multiple industries, including electronics, automotive, and construction. Among the myriad forms of screws available in the market, the 1% 201% 4% wafer head screws stand out due to their unique design and capabilities. This article will explore the characteristics, applications, and benefits of these specialized screws, highlighting why they are a preferred choice for many engineers and manufacturers.


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Metal expansion nuts, often referred to as expansion anchors or expansion inserts, are specialized fasteners that expand when a bolt or screw is threaded into them. They typically consist of a cylindrical body with slits along its length or an expandable design that facilitates outward expansion. The main purpose of these nuts is to create a secure grip within a substrate, such as concrete, wood, or metal, thereby preventing loosening due to vibrational forces, temperature fluctuations, or stress.


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