To join barlike bodies such as deformed reinforcing bars easily even in a narrow place.

A plurality of knotched sections 2 like dovetail groove formed at a fringe on one side of a cylinder which is opened by cutting in the axial direction, a strap like projection part 3 is formed in opposition to each knotched section 2 at the other fringe, and a mountain-shaped protruding part 2a is formed at the center of a bottom part of each knotched section 2 like dovetail groove. An abutting part of a barlike body is covered with a joint 1 in which a slit is formed at the center of each sliplike projection part 3. Each straplike projection part 3 is pressed in the knotched section 2 like dovetail groove which opposes to the projection part 3 by pressing each barlike body side of the joint 1. In this process, the mountain-shaped protruding part 2a advances into the slit, a tip side of the straplike projection part 3 is widened on both sides of the knotched section 2 like ant groove, and the joint 1 and the barlike body are crimped.