PURPOSE: To fix a screw to one metal supporting plate solidly, and exhibit large maintaining force and strong torque resistance with respect to a thin plate.

CONSTITUTION: In a screw 1, a tapered cone part 4 is provided adjacently on the top end part of a straight shank 2 having two screw ridges 3, 3, and a cone top part 5 or a drill part 6 is provided on the top end thereof as a hole drilling means. Meanwhile, an annular stopper 7 having a diameter larger than the outer diameter of the screw ridge 3 is provided integratedly on the rear end part of the shank 2. Further, a shaft part 8 is provided adjacently on the opposite to the shank 2 of the annular stopper 7, and female screw body 9 is fit and fixed on the shaft part 8 as a connecting means for connecting the other member.