螺絲釘是(shi)(shi)由(you)頭部(bu)和螺桿兩部(bu)分構成的(de)一類常用(yong)緊固(gu)件(jian)，主要用(yong)來連接(jie)固(gu)定(ding)零件(jian)，大(da)多(duo)是(shi)(shi)起到緊固(gu)和便于安裝(zhuang)拆卸的(de)作用(yong)。隨著螺釘在我們日常生活中使用(yong)越來越廣泛(fan)，除了對其優點的(de)認同(tong)外，人們開始關注其分類及規格型號(hao)。

螺絲釘種類：

1、開槽普(pu)通(tong)螺(luo)釘(ding)(ding)(ding)(ding) 多用于(yu)較小零件的(de)連(lian)接。它有盤頭(tou)(tou)(tou)(tou)(tou)螺(luo)釘(ding)(ding)(ding)(ding)、圓(yuan)(yuan)柱頭(tou)(tou)(tou)(tou)(tou)螺(luo)釘(ding)(ding)(ding)(ding)、半沉頭(tou)(tou)(tou)(tou)(tou)螺(luo)釘(ding)(ding)(ding)(ding)和(he)沉頭(tou)(tou)(tou)(tou)(tou)螺(luo)釘(ding)(ding)(ding)(ding)。盤頭(tou)(tou)(tou)(tou)(tou)螺(luo)釘(ding)(ding)(ding)(ding)和(he)圓(yuan)(yuan)柱頭(tou)(tou)(tou)(tou)(tou)螺(luo)釘(ding)(ding)(ding)(ding)的(de)釘(ding)(ding)(ding)(ding)頭(tou)(tou)(tou)(tou)(tou)強度較高(gao)，瑁(mao)在普(pu)通(tong)的(de)部件連(lian)接上;半沉頭(tou)(tou)(tou)(tou)(tou)螺(luo)釘(ding)(ding)(ding)(ding)的(de)頭(tou)(tou)(tou)(tou)(tou)部呈弧形(xing)，安裝后它的(de)頂(ding)端略(lve)外露，且美觀光滑(hua)，一般用于(yu)儀器(qi)或精密機械(xie)上;沉頭(tou)(tou)(tou)(tou)(tou)螺(luo)釘(ding)(ding)(ding)(ding)則(ze)用于(yu)不允(yun)許釘(ding)(ding)(ding)(ding)頭(tou)(tou)(tou)(tou)(tou)露出的(de)地方。

2、內六(liu)角(jiao)及內六(liu)角(jiao)花形螺釘 這(zhe)類螺釘的(de)頭部能埋入構件(jian)中，可(ke)(ke)施(shi)加(jia)較(jiao)大的(de)扭矩，連(lian)接(jie)強度較(jiao)高，可(ke)(ke)代替(ti)六(liu)角(jiao)螺栓(shuan)。常用(yong)于結構要求緊湊，外觀(guan)平(ping)滑(hua)的(de)聯接(jie)處。

3、十(shi)字槽(cao)普通(tong)螺釘 它與開槽(cao)普通(tong)螺釘的(de)使用功能相(xiang)似，可互相(xiang)代換，但十(shi)字槽(cao)普通(tong)螺釘的(de)槽(cao)形強度較高，不易擰禿，外(wai)形較為(wei)美觀。使用時須用與之配套的(de)十(shi)字形旋(xuan)具進(jin)行(xing)裝卸。

4、吊(diao)環螺釘(ding) 吊(diao)環螺釘(ding)是供(gong)安(an)裝(zhuang)和運輸(shu)時承(cheng)重(zhong)的(de)一(yi)種五金配件。使用時螺釘(ding)須(xu)旋進至(zhi)使支承(cheng)面(mian)(mian)緊(jin)密貼合的(de)位置，不準使用工具扳緊(jin)，也(ye)不允許有垂(chui)直(zhi)于(yu)吊(diao)環平面(mian)(mian)的(de)荷載作(zuo)用在上(shang)面(mian)(mian)。

5、緊(jin)(jin)(jin)(jin)(jin)定(ding)(ding)螺釘(ding) 緊(jin)(jin)(jin)(jin)(jin)定(ding)(ding)螺釘(ding)用(yong)于固(gu)(gu)(gu)定(ding)(ding)機件的(de)相對位(wei)置。把緊(jin)(jin)(jin)(jin)(jin)定(ding)(ding)螺釘(ding)旋入待(dai)緊(jin)(jin)(jin)(jin)(jin)定(ding)(ding)的(de)零(ling)(ling)件的(de)螺孔中，以其末端(duan)(duan)緊(jin)(jin)(jin)(jin)(jin)壓(ya)在(zai)(zai)另一零(ling)(ling)件的(de)表面上，即把前一零(ling)(ling)件固(gu)(gu)(gu)定(ding)(ding)在(zai)(zai)后(hou)一零(ling)(ling)件上。 緊(jin)(jin)(jin)(jin)(jin)定(ding)(ding)螺釘(ding)通常(chang)由(you)鋼或(huo)不銹鋼材料制造，它的(de)端(duan)(duan)頭形(xing)(xing)(xing)(xing)(xing)狀(zhuang)有錐(zhui)形(xing)(xing)(xing)(xing)(xing)、凹(ao)形(xing)(xing)(xing)(xing)(xing)、平(ping)頭形(xing)(xing)(xing)(xing)(xing)、圓柱形(xing)(xing)(xing)(xing)(xing)和階梯(ti)(ti)形(xing)(xing)(xing)(xing)(xing)等。錐(zhui)端(duan)(duan)或(huo)凹(ao)端(duan)(duan)緊(jin)(jin)(jin)(jin)(jin)定(ding)(ding)螺釘(ding)的(de)端(duan)(duan)頭直(zhi)接頂(ding)緊(jin)(jin)(jin)(jin)(jin)零(ling)(ling)件，一般用(yong)于安裝(zhuang)后(hou)不常(chang)拆(chai)卸處;平(ping)端(duan)(duan)緊(jin)(jin)(jin)(jin)(jin)定(ding)(ding)螺釘(ding)的(de)端(duan)(duan)頭平(ping)滑，頂(ding)緊(jin)(jin)(jin)(jin)(jin)后(hou)不損傷(shang)零(ling)(ling)件表面，用(yong)于需(xu)經(jing)常(chang)調節位(wei)置的(de)聯接處，只能(neng)傳遞較(jiao)小的(de)荷(he)(he)載;圓柱端(duan)(duan)緊(jin)(jin)(jin)(jin)(jin)定(ding)(ding)螺部用(yong)在(zai)(zai)需(xu)經(jing)常(chang)調節固(gu)(gu)(gu)定(ding)(ding)位(wei)置，它能(neng)承受較(jiao)大(da)的(de)荷(he)(he)載作用(yong)，但(dan)防(fang)松(song)性能(neng)差，固(gu)(gu)(gu)定(ding)(ding)時(shi)需(xu)采取防(fang)松(song)措施;階梯(ti)(ti)肜緊(jin)(jin)(jin)(jin)(jin)定(ding)(ding)螺釘(ding)適(shi)用(yong)于壁(bi)厚較(jiao)大(da)的(de)零(ling)(ling)件固(gu)(gu)(gu)定(ding)(ding)。

6、自攻(gong)螺(luo)(luo)(luo)釘 自攻(gong)螺(luo)(luo)(luo)釘用在被(bei)(bei)聯(lian)接(jie)件上(shang)時(shi)，被(bei)(bei)聯(lian)接(jie)處可(ke)以不預先(xian)制出螺(luo)(luo)(luo)紋(wen)。在聯(lian)接(jie)時(shi)利用螺(luo)(luo)(luo)釘直接(jie)攻(gong)出螺(luo)(luo)(luo)紋(wen)。它常用于聯(lian)接(jie)厚度較薄的金(jin)屬板。其品種(zhong)有錐端自攻(gong)螺(luo)(luo)(luo)釘與平端自攻(gong)螺(luo)(luo)(luo)釘兩種(zhong)。

7、自(zi)攻鎖(suo)緊(jin)螺(luo)釘 自(zi)攻鎖(suo)緊(jin)螺(luo)釘不僅(jin)具有(you)自(zi)攻作用，而(er)且還具有(you)低(di)擰入力矩和(he)高鎖(suo)緊(jin)的(de)(de)性(xing)能。它的(de)(de)螺(luo)紋為三角形截面，螺(luo)釘的(de)(de)表面經過淬硬處理，有(you)較高的(de)(de)硬度。它的(de)(de)螺(luo)紋規(gui)格有(you)M2～M12