螺旋线helix螺纹screwthread圆柱螺纹parallelscrewthread圆锥螺纹taperscrewthread外螺纹externalthread内螺纹internalthread单线螺纹single-startthread多线螺纹multi-startthread右旋螺纹right-handthread左旋螺纹left-handthread自攻螺纹tappingscrewthread基本牙型basicprofile牙型角threadangle牙型半角halfofthreadangle公称直径nominaldiameter螺纹大径majordiameter螺纹小径minordiameter螺纹中径pitchdiameter螺距pitch螺纹导程lead螺纹升角leadangle螺纹牙厚threadridgethickness螺纹槽宽threadgroovewidth螺纹旋合长度lengthofthreadengagement螺纹接触高度threadcontactheight螺距偏差deviationinpitch螺距累积误差cumulativeerrorinpitch螺栓bolt双头螺柱stud六角头螺栓hexagonbolt地脚螺栓foundationboltT形螺栓T-headbolt,hammerheadbolt螺钉screw紧定螺钉setscrew自攻螺钉tappingscrew吊环螺钉liftingeyebolt开槽圆柱头螺钉slottedcheeseheadscrew开槽盘头螺钉slottedpanheadscrew开槽沉头螺钉slottedcountersunk(flat)headscrew开槽半沉头螺钉slottedraisedcountersunk(oval)headscrew开槽圆头螺钉slottedroundheadscrew内六角圆柱头螺钉hexagonsocketheadcapheadscrew内六角沉头螺钉hexagonsocketcountersunkheadcapheadscrew十字槽盘头螺钉crossrecessedpanheadscrew十字槽沉头螺钉crossrecessedcountersunkheadscrew螺母nut六角螺母hexagonnut方螺母squarenut圆螺母roundnut滚花高螺母knurlednutwithcollar翼形螺母wingnut吊环螺母liftingnut螺纹牙型threadtoothprofile三角形螺纹triangularthread矩形螺纹squarethread梯形螺纹trapezoidal(acme)thread锯齿形螺纹buttressthread外(阳)螺纹external(male)thread内(阴)螺纹internal(female)thread倒角chamfer球头roundheads平头flatheads螺尾threadrunout退刀(越程)槽undercut车外螺纹externalthreadlathing车内螺纹internalthreadlathing套外螺纹coveringexternalthread攻内螺纹tapping钻孔drilling铰孔reaming通孔throughhole盲孔blindhole螺纹盲孔blindthreadedhole麻花钻twistdrill钻头角pointangle螺纹终止线threadendline公称直径nominaldiameter螺纹大径majordiameter螺纹小径minordiameter螺纹中径pitch(effective)diameter牙底root牙顶crest螺距pitch导程lead旋向revolvingdirection螺纹角threadangle右旋螺纹righthand-thread左旋螺纹lefthand-thread顺时针方向clockwise逆时针方向anti-clockwise线数numberofstarts单线螺纹single-startthread双线螺纹double-startthread多线螺纹multiplethread标准螺纹standardscrew非标准螺纹nonstandardscrew特殊螺纹specialthread粗牙普通螺纹coarsepitchthread细牙普通螺纹finepitchthread螺纹规格screwsize普通(公制)螺纹general(metric)thread管螺纹pipethread圆柱内管螺纹parallelinternalpipethread圆锥内管螺纹taperinternalpipethread圆柱外管螺纹parallelexternalpipethread圆锥外管螺纹taperexternalpipethread小螺纹minithread传动螺纹transmissionthread558非密封管螺纹558non-sealingpipethread558密封管螺纹558sealingpipethread608密封管螺纹608sealingpipethread米制锥螺纹metrictaperthread自攻螺钉螺纹self-drillingscrewthread木螺钉螺纹woodennailthread气瓶专用螺纹threadforgastanke螺纹紧固件screwfasteners螺纹旋合长度lengthofthreadengagement中旋合长度threadengagementgroup-normal螺栓bolt六角头螺栓hexagonheadbolt双头螺柱stud有效长度effectivelength旋入(机件)端metalend露出端(旋螺母端)nutend螺栓联接boltjoint螺柱联接studjoint螺钉联接screwjoint螺钉screw紧定螺钉setscrew开槽球头螺钉slottedroundheadscrew开槽圆柱头螺钉slottedcheeseheadscrew开槽盘头螺钉slottedpanheadscrew开槽沉头螺钉slottedcountersunkscrew十字槽沉头螺钉philipscountersunkscrew内圆柱头六角螺钉socketcapscrew开槽锥端紧定螺钉slottedconepointedsetscrew开槽平端紧定螺slottedflatpointsetscrew开槽长圆柱端紧定螺钉slotteddogpointsetscrew...
