| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure with good assembling accuracy by drawing a mating member to be fixed by constructing a small screw for fixing plural adjacent members so that only a portion thereof biting into the member on the screw tip side is provided with a thread part. SOLUTION: A single thread part 13 is formed only in a portion of the tip side of a shaft of a small screw 12 provided with a screw head 11. The thread portion 13 may be formed in two or more start-threads. It may be used for connecting and fixing a square timber. Thus, in assembling panels 14, 15, after the head 11 abuts on the panel 14, drawing force is applied to the panel 15 by the thread part 13 biting into the panel 15 so that even if the panel 14 is bent, they can fixed to each other in the close contact state. Accordingly, the respective members can be surely screwed and fixed without a gap so as to assemble a structure with good accuracy.
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