A disc brake (1) for a vehicle, in particular for a commercial vehicle, comprises a brake disc (2) having a brake disc rotational axis (2a), a brake caliper (3), in particular a sliding caliper, having an application section (3a) and a back section (3b), at least two brake pads (4, 5) with in each case one pad back plate (4a, 5a) provided with a pad retaining spring (6, 7), which are each supported under preload by a pad retaining clip (8) releasably fastened to the brake caliper (3) and of which an application-side brake pad (4) is assigned to the application section (3a), and a back-side brake pad (5) is assigned to the back section (3b), and a securing device (10) for securing the position of the pad retaining clip (8). The securing device (10) has at least one slidably guided pin element (11) which is displaceable from a rest position into an engagement position and back again, wherein, in the engagement position, the at least one pin element (11) forms a releasable connection between the pad retaining clip (8) and the pad back plate (5a) of the back-side brake pad (5). A brake pad set (100) comprises the two brake pads (4, 5) on the particular pad back plate (4a, 5a), the associated pad retaining springs (6, 7), the pad retaining clip (8) and the securing device (10).
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