Machine e screw机械螺丝
machine-screw nut小螺帽
machine run screw机用螺钉
round head machine screw圆头机器螺丝
raised head machine screw突头机器螺钉
machine screw tap机用丝锥;机丝锥;机螺杆塔
MACHINE SCREW NUTS机械螺帽
er machine screw tap锥形机用丝锥
hexagon head machine screw六角小螺钉
N(名词) a fastening screw with a machine-cut thread throughout the length of its shank 机器螺钉; 柄上带有机械切削的线条的固定螺丝