What is the difference between a pinned connection and a bolted connection

The pin is a kind of standardized fastener, which can be fixed statically or moved relative to the connected parts. It is mainly used for the hinged connection of two parts to form a hinged connection. The pin is usually locked with a split pin, which is reliable and easy to disassemble. The international standard for pins is ISO 2341:1986. Domestic standard GB/T882-2008.

Bolt connection: There are two connection methods: one is ordinary bolt connection, which is characterized by a large gap between the screw and the through hole, low machining accuracy, and easy assembly and disassembly, but another positioning device is required. The other is the hinged hole (fit) bolt connection, which is characterized by the fact that there is no gap between the screw and the through hole, and the base hole system is used for overfitting (H7/m6, H7/n6), which can accurately fix the position of the connected parts, and can Bear lateral loads, but require high machining accuracy.

Haiyan Xinglong Fastener Co., Ltd. was established in 1994. It is a professional manufacturer of fastener products and a self-operated import and export enterprise approved by the Ministry of Foreign Trade. The  flat head screws company is located in the Haiyan Qinshan Economic Development Zone on the north shore of Hangzhou Bay, on the coast of the East China Sea. It is 110 kilometers north of Shanghai and 82 kilometers south of Hangzhou. It is located in the middle section of Haiyan Qinshan Avenue. The geographical position is superior and the transportation is very convenient. The North and South Lakes, the world's wonder "Haining Tide" and many scenic spots are within easy reach.

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