Introduction
There are two main features of Hex Socket Head SEMS Screws with Flat, one is a hexagon socket and the other is a flat head. Hexagon socket screws, as the name suggests, have six surfaces, which also means that they have more surface area and therefore they can withstand more load forces.The design of the flat head is similar to the countersunk head screws, which can embed the nail head in the machine part, which increases the connection strength and ensures the aesthetics of the surface of the machine part. http://www.junlyhardwaresupply.....com/fastener-parts/
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