方头螺钉.ppt
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1、Chapter 18 Fasteners A fastener is any devices used to connect two or more components.There are hundreds of fastener types used in machine design.But the most common are threaded fasteners.Such as:Bolt(螺栓),nut(螺母),screw(螺钉),lag screw(方头螺钉),set screw(紧定螺钉),washer(垫圈)。Hex bolt and hex head cap screwnA
2、 bolt is a threaded fastener design to pass a hole in the mating member and to be secured by tightening a nut from the end opposite the head of the head.nA screw is a threaded fastener design to be inserted through a hole in one member to be connected and into a threaded hole in the mating member,no nut is needed.18-2 other types of fastener and accessoriesSet screw(紧定螺钉)with different head and point styles used to hold a collar on a shaftLock devices(锁紧装置)Type of thread connect
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- 方头 螺钉
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