| 摘要 |
A screw for fixing a hard board is provided to secure a room and improve an outward appearance by covering an inserting part with a similar color and material. A screw for fixing a hard board includes a head part(110) and a body part(120) having a drill part(10) boring an assembling material, a pair of knife blades part(20) forming a concave groove and, a saw blade part(30) digging into the concave groove.
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