Engineers need to be continually reminded that nearly all engineering failures result from faulty judgments rather than faulty calculations1.Threaded fasteners and Power screws2.Riveted joints（销连接）3.Welded joints（焊接）4.Adhesive joints/bonded joints（胶/粘结）5.Other type of fasteners*联接件设计联接件设计-Fasteners第五章第五章 螺纹连接与螺旋传动螺纹连接与螺旋传动联接(Fastening)动联接(moving fastening)静联接(static fastening)：在机器中，把两个零(部)件联接起来使之没有相对运动的联接不可拆卸联接（non-dismountable）静联接可拆卸联接（dismountable）5.1.1 螺纹的主要参数(Parameters)5.1 螺纹(Threads)螺纹联接构
