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五金家具螺絲(螺絲、螺釘、螺栓、螺母)等的區別
- 2019-01-17 -

                五金家具螺絲(螺絲、螺釘、螺栓、螺母)等的區別


1、五金家具螺絲的螺絲是俗稱,并且帶有外螺紋的都可稱"螺絲"??


2、螺母外形通常為六角形,內孔為內螺紋.用來與螺栓配合,把緊相關件.??螺帽是俗稱,標準應稱"螺母",螺母與螺栓相配使用。


3、螺栓的頭部一般為六角形,桿部帶有外螺紋,?螺栓再機械制造中廣泛應用于可拆連接,一般與螺母(通常再加上一個墊圈或兩個墊圈)配套使用。?


4、螺釘較小,頭部有平頭、十字頭等,桿部帶有外螺紋,螺釘通常是單獨(有時加墊圈)使用,一般起緊固或緊定作用,應擰入機體的內螺紋。?


5、螺柱實際應叫“雙頭螺柱”,兩頭均有外螺紋,中間一般是光桿。螺紋長的一端用來與深孔連接,短的一段與螺母連接?螺柱多用于連接被連接件之一厚度大,需使用結構緊湊或因拆卸頻繁而不宜采用螺栓連接的地方。螺柱一般為兩端都帶有螺紋(單頭螺柱為單端帶螺紋),通常將一頭螺紋牢固擰入部件機體中,另一端與螺母相配,?起連接和緊固的作用,但在很大程度上還具有定距的作用


不銹鋼非標螺絲共分十二大類,選用時按螺柱多用于連接被連接件之一厚度大,需使用結構緊湊或因拆卸頻繁而不宜采用螺栓連接的地方。?


6、自攻螺釘?與自攻螺釘相配的工作螺孔不需預先攻絲,在擰入自攻螺釘的同時,使內螺紋成型。


7、墊圈?墊圈放在螺栓、螺釘和螺母等的支承面與工件支承面之間使用,起防松和減小支承面應力的作用。?


8、擋圈?擋圈主要用來將零件在軸上或孔中定位、鎖緊或止退。?


9、銷?銷通常用于定位,也可用于連接或鎖定零件,還可作為安全裝置中的過載剪斷元件。?


10、鉚釘:鉚釘一端有頭部,且桿部無螺紋。使用時將桿部插入被連接件的孔內,然后將桿的端部鉚緊,起連接或緊固作用。?


11、連接副連接副即螺釘或螺栓或自攻螺釘和墊圈的組合。墊圈裝于螺釘后,必須能在螺釘(或螺栓)上自由轉動而不脫落。主要起緊固或緊定作用。


12、其他?主要包括焊釘等內容。





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