2.1 紧固件

螺栓 bolt
六角头螺栓 hexagonal head bolt
方头螺栓 square head bolt
螺柱，双头螺栓 stud bolt
环头螺检 eye bolt
沉头螺栓 countersunk (head) screw
地脚螺栓 anchor bolt; foundation bolt
松紧螺旋扣（花篮螺丝） turnbuckle
U形螺栓 U-bolt
T形螺栓 T-bolt
圆头螺钉 round head bolt
机螺栓，机螺钉 maehine bolt
顶开螺栓，顶起螺栓 Jack screw
自攻螺钉 self tapping screw
膨胀螺栓 expansion bolt
粗制的 coarse
精制的 finished, fine
螺母 nut
六角螺母 hexagonal nut
方螺母 square nut
蝶形螺母 wing nut
扁螺母 flat nut
锁紧螺母 lock nut
垫圈 washer
平垫圈 plain washer
球面垫圈 spherical washer
弹簧垫圈 spring washer
方垫圈 square washer
斜垫圈 slant washer
销轴 pinned shan
销 pin
开口销 cotter pin
定位销 dowel pin
带孔销 pin with hole
圆锥销 taper pin
铆钉 rivet
键 key

2.2   螺纹

左螺纹left hand thread
右螺纹 right hand thread
管螺纹 pipe thread
锥管螺纹 taper pipe thread
直管螺纹straight pipe thread
梯形螺纹 trapezoid thread
螺距pitch of thread
粗牙螺纹coarse thread
细牙螺纹 fine thread
特细牙螺纹extra fine thread
通长螺纹full thread
惠氏螺纹whitworth thread
公制螺纹 metric ibread
美国标准锥管螺纹 American standard taper pipe thread (NPT)
螺孔 tap