This slider (1, 2, 3) has: a slider body (10, 10a, 50) provided with first and second mounting sections (20, 30); a pull tab (8); and a cover member (40, 40a, 60). The cover member (40, 40a, 60) is provided with: latch sections (43, 63) extending forward from the cover body (41, 61); and a stop claw section (45, 65). The first mounting section (20) is provided with: left and right first side wall bodies (21); a first connection bar (22) for connecting the first side wall bodies (21); and a housing space (24) disposed between the first connection bar (22) and an upper wing plate (11, 11a, 51) and housing the latch sections (43, 63). The housing space (24) penetrates through the first mounting section (20) in the length direction of the slider. As a result of the configuration, the manufacturing cost of the slider (1, 2, 3) is reduced, the first mounting section (20) can be reinforced by the first connection bar (22), and an elastic section (42, 62) can be protected.