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Screw Main Categories, Including Ordinary Screws, Machine Screws, Self-tapping Screws And Anchors Three

Hex head screw Hex Cap screw with the hex bolts Hex hex bolt as the name suggests the head externally threaded fastener designed to use a wrench to turn. In accordance with the ASME standard B18.2.1, Hexagon socket head cap screws (Hex Cap screw) more general large Hexagon bolt (Hex bolt) head high and Rod length tolerance of small, ASME B18.2.1 hex cap screws for attachment to the Hexagon bolts can be used for all places, also contains a large Hexagon bolts are too large to use the place.