无: not have; there is not; be w ...头: 5点就得动身 have to start before ...螺钉: nut bolt; screw; screw faste ...锥端无头螺钉: conical pointed grub screw螺桩,无头螺栓: stud bolt无头螺杆: headless screw无头螺栓: short-driven bolt无头螺丝: grub screw; grubscrew; worm screw无头螺桩: screw stud水管无头螺丝: water bass pressure plugs凹头螺钉: socket (head) screw;socketed screw凹头螺钉键: socket screw key半沉头螺钉: machine screw with oval countersunk fillister head; oval head screw; raised countersunk head screw半埋头螺钉: instrument headed screw半圆头螺钉: button headed screw; button-headed screw; cup head screw; half-round head screw; half-round screw; round head screw扁头螺钉: brazier head screw; lentil-headed screw槽头螺钉: slotted head screw沉头螺钉: countersunk head screw; flat(countersunk)head screw; sunk screw大圆头螺钉: tru head screw; truss head screw大柱头螺钉: pan head screw蝶形头螺钉: fly headed screw; fly-headed screw堵头螺钉: plug screw多头螺钉: multiple threaded bolts; multiple-threaded bolts方头螺钉: coach screw; lag screw with square head; square head screw; square headed screw; square-head screw高头螺钉: raised head screw