| 摘要 |
PROBLEM TO BE SOLVED: To lessen preliminary hole boring work by use of a common hanging band and continuous thread screws similarly to the conventional cases of an anchor hardware. SOLUTION: A large-diameter part 70a of an anchor socket is provided with an inner screw part 72 engaged with 3/8" continuous thread screw 60 similar to the conventional one, and a small-diameter part 70b is formed to be fitted in a small-diameter prepared hole 30 formed in a structure and held in the expanded state in the small hole 30.
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