螺絲釘是(shi)由頭部和螺桿(gan)兩部分構成的(de)一類常用(yong)(yong)緊固件(jian)(jian)，主要用(yong)(yong)來連接固定零件(jian)(jian)，大多是(shi)起到緊固和便于安裝拆卸(xie)的(de)作用(yong)(yong)。隨著螺釘在(zai)我們日常生(sheng)活中使用(yong)(yong)越來越廣泛，除了對其(qi)(qi)優點的(de)認同外，人們開始關注其(qi)(qi)分類及規格型號。

螺絲釘種類：

1、開槽(cao)普(pu)通(tong)螺(luo)(luo)釘(ding)(ding)(ding) 多用于(yu)較(jiao)小零件的(de)(de)連接。它有盤(pan)頭(tou)(tou)(tou)螺(luo)(luo)釘(ding)(ding)(ding)、圓柱(zhu)頭(tou)(tou)(tou)螺(luo)(luo)釘(ding)(ding)(ding)、半(ban)沉(chen)頭(tou)(tou)(tou)螺(luo)(luo)釘(ding)(ding)(ding)和(he)沉(chen)頭(tou)(tou)(tou)螺(luo)(luo)釘(ding)(ding)(ding)。盤(pan)頭(tou)(tou)(tou)螺(luo)(luo)釘(ding)(ding)(ding)和(he)圓柱(zhu)頭(tou)(tou)(tou)螺(luo)(luo)釘(ding)(ding)(ding)的(de)(de)釘(ding)(ding)(ding)頭(tou)(tou)(tou)強度(du)較(jiao)高，瑁在普(pu)通(tong)的(de)(de)部件連接上;半(ban)沉(chen)頭(tou)(tou)(tou)螺(luo)(luo)釘(ding)(ding)(ding)的(de)(de)頭(tou)(tou)(tou)部呈弧形，安裝后它的(de)(de)頂端略(lve)外露(lu)，且美(mei)觀光(guang)滑，一般用于(yu)儀器或精密(mi)機械上;沉(chen)頭(tou)(tou)(tou)螺(luo)(luo)釘(ding)(ding)(ding)則用于(yu)不允許釘(ding)(ding)(ding)頭(tou)(tou)(tou)露(lu)出的(de)(de)地方。

2、內六角(jiao)(jiao)及內六角(jiao)(jiao)花形螺(luo)(luo)釘 這(zhe)類(lei)螺(luo)(luo)釘的(de)頭部能埋入構件中，可施加較大(da)的(de)扭矩(ju)，連(lian)接(jie)強度(du)較高，可代替六角(jiao)(jiao)螺(luo)(luo)栓。常用于結構要求(qiu)緊湊(cou)，外(wai)觀平(ping)滑(hua)的(de)聯接(jie)處。

3、十(shi)字(zi)槽(cao)普通(tong)螺(luo)釘 它與開槽(cao)普通(tong)螺(luo)釘的使用(yong)(yong)功能相似(si)，可(ke)互相代(dai)換，但十(shi)字(zi)槽(cao)普通(tong)螺(luo)釘的槽(cao)形強度較(jiao)高，不易(yi)擰(ning)禿，外形較(jiao)為美觀。使用(yong)(yong)時(shi)須用(yong)(yong)與之配套的十(shi)字(zi)形旋(xuan)具進(jin)行裝卸。

4、吊環螺(luo)(luo)釘 吊環螺(luo)(luo)釘是(shi)供(gong)安(an)裝和運輸時承(cheng)重的一種五金配件。使用時螺(luo)(luo)釘須旋進至使支承(cheng)面緊密貼合的位置，不準使用工具扳(ban)緊，也不允許有垂直于吊環平面的荷載作用在上面。

5、緊(jin)(jin)(jin)(jin)(jin)定(ding)(ding)(ding)(ding)螺(luo)(luo)釘(ding)(ding)(ding)(ding) 緊(jin)(jin)(jin)(jin)(jin)定(ding)(ding)(ding)(ding)螺(luo)(luo)釘(ding)(ding)(ding)(ding)用(yong)(yong)于(yu)固定(ding)(ding)(ding)(ding)機件(jian)的(de)(de)相對位(wei)置。把(ba)緊(jin)(jin)(jin)(jin)(jin)定(ding)(ding)(ding)(ding)螺(luo)(luo)釘(ding)(ding)(ding)(ding)旋入待緊(jin)(jin)(jin)(jin)(jin)定(ding)(ding)(ding)(ding)的(de)(de)零件(jian)的(de)(de)螺(luo)(luo)孔中，以(yi)其末端(duan)(duan)緊(jin)(jin)(jin)(jin)(jin)壓(ya)在另一零件(jian)的(de)(de)表面上，即(ji)把(ba)前(qian)一零件(jian)固定(ding)(ding)(ding)(ding)在后(hou)一零件(jian)上。 緊(jin)(jin)(jin)(jin)(jin)定(ding)(ding)(ding)(ding)螺(luo)(luo)釘(ding)(ding)(ding)(ding)通(tong)常由鋼(gang)或不(bu)銹鋼(gang)材料制(zhi)造(zao)，它的(de)(de)端(duan)(duan)頭(tou)形(xing)(xing)狀有錐形(xing)(xing)、凹(ao)(ao)形(xing)(xing)、平(ping)頭(tou)形(xing)(xing)、圓(yuan)柱形(xing)(xing)和階梯形(xing)(xing)等。錐端(duan)(duan)或凹(ao)(ao)端(duan)(duan)緊(jin)(jin)(jin)(jin)(jin)定(ding)(ding)(ding)(ding)螺(luo)(luo)釘(ding)(ding)(ding)(ding)的(de)(de)端(duan)(duan)頭(tou)直(zhi)接(jie)頂緊(jin)(jin)(jin)(jin)(jin)零件(jian)，一般用(yong)(yong)于(yu)安(an)裝后(hou)不(bu)常拆卸處(chu);平(ping)端(duan)(duan)緊(jin)(jin)(jin)(jin)(jin)定(ding)(ding)(ding)(ding)螺(luo)(luo)釘(ding)(ding)(ding)(ding)的(de)(de)端(duan)(duan)頭(tou)平(ping)滑(hua)，頂緊(jin)(jin)(jin)(jin)(jin)后(hou)不(bu)損傷(shang)零件(jian)表面，用(yong)(yong)于(yu)需(xu)經常調節位(wei)置的(de)(de)聯接(jie)處(chu)，只能(neng)傳遞較小的(de)(de)荷載;圓(yuan)柱端(duan)(duan)緊(jin)(jin)(jin)(jin)(jin)定(ding)(ding)(ding)(ding)螺(luo)(luo)部用(yong)(yong)在需(xu)經常調節固定(ding)(ding)(ding)(ding)位(wei)置，它能(neng)承受(shou)較大(da)的(de)(de)荷載作用(yong)(yong)，但防松性能(neng)差，固定(ding)(ding)(ding)(ding)時需(xu)采取防松措施;階梯肜緊(jin)(jin)(jin)(jin)(jin)定(ding)(ding)(ding)(ding)螺(luo)(luo)釘(ding)(ding)(ding)(ding)適(shi)用(yong)(yong)于(yu)壁厚(hou)較大(da)的(de)(de)零件(jian)固定(ding)(ding)(ding)(ding)。

6、自攻(gong)螺(luo)(luo)(luo)釘(ding) 自攻(gong)螺(luo)(luo)(luo)釘(ding)用(yong)在(zai)被聯(lian)接(jie)件(jian)上時，被聯(lian)接(jie)處可以不預先制出(chu)螺(luo)(luo)(luo)紋。在(zai)聯(lian)接(jie)時利用(yong)螺(luo)(luo)(luo)釘(ding)直接(jie)攻(gong)出(chu)螺(luo)(luo)(luo)紋。它(ta)常用(yong)于聯(lian)接(jie)厚度較薄的(de)金屬板。其(qi)品(pin)種(zhong)有(you)錐端自攻(gong)螺(luo)(luo)(luo)釘(ding)與(yu)平(ping)端自攻(gong)螺(luo)(luo)(luo)釘(ding)兩種(zhong)。

7、自攻(gong)(gong)鎖緊螺(luo)(luo)(luo)釘 自攻(gong)(gong)鎖緊螺(luo)(luo)(luo)釘不僅(jin)具有(you)自攻(gong)(gong)作用(yong)，而且還(huan)具有(you)低擰入(ru)力矩和(he)高鎖緊的(de)性能。它(ta)的(de)螺(luo)(luo)(luo)紋(wen)為三角形截面(mian)，螺(luo)(luo)(luo)釘的(de)表面(mian)經過淬硬處理，有(you)較(jiao)高的(de)硬度(du)。它(ta)的(de)螺(luo)(luo)(luo)紋(wen)規格有(you)M2～M12