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The M10 expansion bolt consists of a threaded bolt, an expansion sleeve, and a nut. The bolt is inserted into a pre-drilled hole in the concrete or masonry, and the expansion sleeve is then placed over the bolt. As the nut is tightened, the bolt is pulled through the sleeve, causing it to expand and grip the walls of the hole tightly. This creates a strong connection between the bolt and the material, allowing for heavy loads to be securely fastened.

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HEBEI YUETONG FASTENERS flat washer sizes