| 摘要 |
PROBLEM TO BE SOLVED: To provide clamp metal fittings that can have a nut lock part molded at a low cost and eliminate a trouble such that a fixing nut becomes hard to separate from the nut lock part.SOLUTION: A nut lock part 5 which swells is formed by collapsing one end part of a fastening bolt 3. The nut lock part 5 is formed to cover screw threads 3A at an end of the fastening bolt 3. A fixing nut 4 is configured not to come out of the one end part of the fastening bolt 3. A hollow part 5A is formed in one end part of the fastening bolt 3. The hollow part 5A is spread outward to form a swelling part 5B. The swelling part 5B is formed to cover screw threads 3A at the end of the fastening bolt 3. The fixing nut 4 has a lock step part 4A. When the fixing nut 4 is disengaged, the nut lock part 5 is locked in the lock step part 4A. |
