| 摘要 |
PROBLEM TO BE SOLVED: To easily and accurately determine a screw fastening position in fastening a screw diagonally. SOLUTION: This guide includes a mounting part with a side face 6 formed at an acute angle with a member 5 fastening a screw 3, the side face 6 having a semicircular groove 6a formed therein where the shell of the screw 3 can be positioned.
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