螺钉

• Hexagon head tapping screw and big washer assemblies
  六角头自攻螺钉和大垫圈组合件
• Hexagon socket set screws , flat point . iso thread
  内六角平头止动螺钉. iso螺纹
• Rech slotted and drilled cheese head screws . sim thread
  开槽有孔圆头螺钉. sim螺纹
• Shipbuilding . kingston valves . bolts and screws
  造船工业. "金斯顿"阀门.螺栓和螺钉
• Screws . slotted " poelier " head . symbol rl s
  螺钉.有槽宽园形头螺钉.符号rl s
• Screws , cross recessed , 120 degree raised countersunk head
  十字槽120半沉头螺钉
• Hexagon socket set screws , cone point . iso thread
  内六角锥头止动螺钉. iso螺纹
• Aerospace ; bihexagonal heads for screws and bolts
  航空和航天.螺钉和螺栓的十二角头