| 摘要 |
PROBLEM TO BE SOLVED: To provide a calking nut allowed to reduce a diameter while sufficiently securing the contact area to a metallic plate in the nut used by being previously fixed to the metallic plate. SOLUTION: A recessed part 1C capable of receiving a cylindrical projecting part C around a bolt inserting hole BH formed in the metallic plate PL is formed in an end surface 1B opposed to the metallic plate PL. A locking part 1D capable of calking and fixing the cylindrical projecting part C is formed on a peripheral wall of the recessed part 1C. |
