螺(luo)絲釘(ding)是(shi)由(you)頭(tou)部和螺(luo)桿兩(liang)部分(fen)(fen)構(gou)成的(de)一(yi)類常(chang)用(yong)(yong)緊(jin)固(gu)件，主要用(yong)(yong)來連接(jie)固(gu)定零件，大多是(shi)起(qi)到(dao)緊(jin)固(gu)和便于安裝(zhuang)拆卸(xie)的(de)作用(yong)(yong)。隨著(zhu)螺(luo)釘(ding)在我們(men)日常(chang)生活中使用(yong)(yong)越(yue)來越(yue)廣泛，除了對(dui)其優點的(de)認同(tong)外，人們(men)開始關注其分(fen)(fen)類及規格型號。

螺絲釘種類：

1、開槽普(pu)通螺(luo)(luo)(luo)(luo)(luo)釘(ding) 多用(yong)于較(jiao)小零件的連(lian)接。它(ta)有盤(pan)頭(tou)(tou)螺(luo)(luo)(luo)(luo)(luo)釘(ding)、圓(yuan)柱頭(tou)(tou)螺(luo)(luo)(luo)(luo)(luo)釘(ding)、半(ban)沉(chen)(chen)頭(tou)(tou)螺(luo)(luo)(luo)(luo)(luo)釘(ding)和沉(chen)(chen)頭(tou)(tou)螺(luo)(luo)(luo)(luo)(luo)釘(ding)。盤(pan)頭(tou)(tou)螺(luo)(luo)(luo)(luo)(luo)釘(ding)和圓(yuan)柱頭(tou)(tou)螺(luo)(luo)(luo)(luo)(luo)釘(ding)的釘(ding)頭(tou)(tou)強度(du)較(jiao)高，瑁在普(pu)通的部(bu)件連(lian)接上(shang);半(ban)沉(chen)(chen)頭(tou)(tou)螺(luo)(luo)(luo)(luo)(luo)釘(ding)的頭(tou)(tou)部(bu)呈弧形，安(an)裝后它(ta)的頂端略外露，且(qie)美觀光(guang)滑，一般用(yong)于儀(yi)器或(huo)精密機械上(shang);沉(chen)(chen)頭(tou)(tou)螺(luo)(luo)(luo)(luo)(luo)釘(ding)則用(yong)于不允許釘(ding)頭(tou)(tou)露出的地方。

2、內六(liu)(liu)角及(ji)內六(liu)(liu)角花形螺(luo)釘 這(zhe)類螺(luo)釘的頭部能埋(mai)入(ru)構件中，可施加(jia)較(jiao)大的扭矩(ju)，連接(jie)強度較(jiao)高，可代替六(liu)(liu)角螺(luo)栓。常用于結構要求緊湊，外觀平滑的聯接(jie)處。

3、十字(zi)槽(cao)普(pu)通(tong)螺(luo)(luo)釘 它與開槽(cao)普(pu)通(tong)螺(luo)(luo)釘的(de)使(shi)用功能(neng)相(xiang)似，可(ke)互相(xiang)代換，但(dan)十字(zi)槽(cao)普(pu)通(tong)螺(luo)(luo)釘的(de)槽(cao)形強度較(jiao)(jiao)高(gao)，不易(yi)擰禿，外(wai)形較(jiao)(jiao)為美觀。使(shi)用時須(xu)用與之配套(tao)的(de)十字(zi)形旋具(ju)進行裝卸。

4、吊(diao)環螺(luo)(luo)釘(ding)(ding) 吊(diao)環螺(luo)(luo)釘(ding)(ding)是供安裝和運輸時承重的一種五(wu)金配件。使用時螺(luo)(luo)釘(ding)(ding)須旋進(jin)至(zhi)使支承面緊密貼合的位置，不準使用工具扳緊，也不允許(xu)有垂直于吊(diao)環平面的荷載作(zuo)用在上面。

5、緊(jin)(jin)(jin)定(ding)(ding)(ding)(ding)(ding)(ding)螺(luo)釘(ding)(ding) 緊(jin)(jin)(jin)定(ding)(ding)(ding)(ding)(ding)(ding)螺(luo)釘(ding)(ding)用于(yu)固(gu)(gu)定(ding)(ding)(ding)(ding)(ding)(ding)機件(jian)(jian)的相對(dui)位置(zhi)。把緊(jin)(jin)(jin)定(ding)(ding)(ding)(ding)(ding)(ding)螺(luo)釘(ding)(ding)旋入待緊(jin)(jin)(jin)定(ding)(ding)(ding)(ding)(ding)(ding)的零件(jian)(jian)的螺(luo)孔中，以(yi)其末端(duan)(duan)緊(jin)(jin)(jin)壓(ya)在(zai)(zai)(zai)另一零件(jian)(jian)的表(biao)面(mian)(mian)上，即把前一零件(jian)(jian)固(gu)(gu)定(ding)(ding)(ding)(ding)(ding)(ding)在(zai)(zai)(zai)后一零件(jian)(jian)上。 緊(jin)(jin)(jin)定(ding)(ding)(ding)(ding)(ding)(ding)螺(luo)釘(ding)(ding)通常(chang)由鋼(gang)或(huo)不(bu)銹鋼(gang)材料制造(zao)，它的端(duan)(duan)頭形(xing)狀(zhuang)有錐(zhui)(zhui)形(xing)、凹形(xing)、平頭形(xing)、圓(yuan)(yuan)柱(zhu)形(xing)和階梯形(xing)等。錐(zhui)(zhui)端(duan)(duan)或(huo)凹端(duan)(duan)緊(jin)(jin)(jin)定(ding)(ding)(ding)(ding)(ding)(ding)螺(luo)釘(ding)(ding)的端(duan)(duan)頭直接(jie)頂(ding)緊(jin)(jin)(jin)零件(jian)(jian)，一般用于(yu)安裝后不(bu)常(chang)拆卸(xie)處(chu);平端(duan)(duan)緊(jin)(jin)(jin)定(ding)(ding)(ding)(ding)(ding)(ding)螺(luo)釘(ding)(ding)的端(duan)(duan)頭平滑，頂(ding)緊(jin)(jin)(jin)后不(bu)損傷零件(jian)(jian)表(biao)面(mian)(mian)，用于(yu)需經(jing)常(chang)調(diao)節位置(zhi)的聯接(jie)處(chu)，只(zhi)能(neng)傳遞較(jiao)小的荷載;圓(yuan)(yuan)柱(zhu)端(duan)(duan)緊(jin)(jin)(jin)定(ding)(ding)(ding)(ding)(ding)(ding)螺(luo)部用在(zai)(zai)(zai)需經(jing)常(chang)調(diao)節固(gu)(gu)定(ding)(ding)(ding)(ding)(ding)(ding)位置(zhi)，它能(neng)承受較(jiao)大(da)(da)的荷載作(zuo)用，但(dan)防松性能(neng)差，固(gu)(gu)定(ding)(ding)(ding)(ding)(ding)(ding)時需采(cai)取防松措施;階梯肜緊(jin)(jin)(jin)定(ding)(ding)(ding)(ding)(ding)(ding)螺(luo)釘(ding)(ding)適用于(yu)壁厚較(jiao)大(da)(da)的零件(jian)(jian)固(gu)(gu)定(ding)(ding)(ding)(ding)(ding)(ding)。

6、自(zi)(zi)攻(gong)(gong)螺(luo)釘 自(zi)(zi)攻(gong)(gong)螺(luo)釘用在被聯(lian)接(jie)(jie)件(jian)上(shang)時，被聯(lian)接(jie)(jie)處可(ke)以不預(yu)先(xian)制出螺(luo)紋。在聯(lian)接(jie)(jie)時利用螺(luo)釘直接(jie)(jie)攻(gong)(gong)出螺(luo)紋。它常用于聯(lian)接(jie)(jie)厚度較(jiao)薄(bo)的金(jin)屬(shu)板(ban)。其品種(zhong)有錐(zhui)端自(zi)(zi)攻(gong)(gong)螺(luo)釘與平端自(zi)(zi)攻(gong)(gong)螺(luo)釘兩種(zhong)。

7、自(zi)(zi)攻(gong)鎖(suo)(suo)緊螺(luo)(luo)釘(ding) 自(zi)(zi)攻(gong)鎖(suo)(suo)緊螺(luo)(luo)釘(ding)不僅具有(you)(you)(you)自(zi)(zi)攻(gong)作用(yong)，而且還具有(you)(you)(you)低擰入(ru)力矩和高(gao)鎖(suo)(suo)緊的性能。它的螺(luo)(luo)紋(wen)為三角形截面，螺(luo)(luo)釘(ding)的表(biao)面經過(guo)淬(cui)硬處理，有(you)(you)(you)較高(gao)的硬度。它的螺(luo)(luo)紋(wen)規格有(you)(you)(you)M2～M12