| 摘要 |
PROBLEM TO BE SOLVED: To provide a joint bolt having a whirl-stop structure employable even in a narrow space and removable even after connection. SOLUTION: The joint bolt is so constituted that the joint bolt is provided with a bolt body 13 and sleeve 16, first engaging sections 17,... are formed between the head 14 of a bolt body 13 and a sleeve 16, and second engaging sections 18, 18 are formed between the sleeve 16 and a spot facing hole 15. |
