machine bolt

英 美
  • 机螺栓
  • bolt n.门闩;螺栓;一卷布;弩箭v.(突然)逃离;闩住;狼吞虎咽;用螺栓固定adv.挺直地
  • machine n.机器;做事效率高的人;工具;车辆v.以机器制造
Noun:
  1. a bolt with a square or hexagonal head on one end and a threaded shaft on the other end; tightened with a wrench; used to connect metal parts