A terminal (10) includes a rectangular tubular box (20) that is open in a front-rear direction. The box (20) includes a bottom wall (30), first and second side walls (40,50) rising from sides (31) of the bottom wall (30), a ceiling wall (60) extending from an upper edge (41) of the first side wall (40) toward the second wall (50) and an outer wall (70) extending from an upper end(51) of the second side wall (50) toward the first side wall (40) along an upper surface of the ceiling wall (60). A holding piece (74F) projects on an extending end part (73F) of the outer wall (70). A holding recess (45F) is provided on an upper end part of the first side wall (40) and receives the holding piece (74F) so that a part of the holding piece (74F) is located inside the box (20).