| 摘要 |
PROBLEM TO BE SOLVED: To reduce the dispersion of caulking pitches and caulking positions of rivet bodies, and improve the driving workability in continuous driving. SOLUTION: A rivet 10 is formed by integrally connecting plural rivet bodies 12 by connecting parts 14, and each rivet body 12 is a hollow rivet formed by a head part 16 and a hollow shaft part 18 extended from a lower face of the head part 16. Each connecting part 14 is mounted on the head part 16 as an axial end of the rivet body I2, and adjacent head parts 16 are connected to each other through the connecting part 14.
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