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hex bolt DIN931 933 S31803 bolt

UNS S31803 Bolt is a threaded fastener with external threads. Generally, like screws, alloy S31803 bolts tend to use a variety of head designs.

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Some stainless steel S31803 hex bolt heads instead lock the bolt in place, which means the bolt doesn’t move and only requires a tool for the nut end. Meanwhile, ASTM A182 F51 UNS S31803 bolts and nuts are made of duplex materials. These bolts and nuts are used in demanding applications such as heat exchangers, pressure vessels and chemical processing applications.

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