Roller shutter apron lock, configured to connect a roller shutter apron to a winding tube of this apron, the lock comprising a front link, which is configured to be assembled to the tube on an external radial surface of the tube and which comprises at least one pin, each configured: - to be inserted into a respective aperture formed in the tube in an engagement direction radial to a longitudinal axis of the tube, the pin then being in an engaged position, - to be displaced, in a mounting direction parallel to the longitudinal axis, from the engaged position to a position in which the pin abuts the tube, in which position the pin is configured to prevent translational movements of the front link relative to the tube in the mounting direction and in a disengagement direction (D'120) opposite the engagement direction, where the front link comprises a clip for locking the front link to the tube, the clip being configured to cooperate with one or more pin-receiving apertures, the clip is elastically deformable between a stressed configuration and a relaxed configuration and tends to spring back to its relaxed configuration, and the clip is arranged so that: - when the pin is in the engaged position, the clip is not aligned along the tube with the corresponding slot and is pushed by the external radial surface towards its constrained configuration, in which the clip does not prevent translational movements of the front link along the tube in the mounting direction or in a dismounting direction (D'202), opposite to the mounting direction, and - when the pin is in the stop position, the clip is aligned along the tube with the corresponding aperture, the clip returning by elastic return to its released configuration and being at least partly received in the corresponding aperture, so as to prevent translational movements of the front link along the tube in the disassembly direction (D'202), the latch then being in a configuration assembled to the tube, characterised in that the front link and the pins are made in a single piece. - to be inserted into a respective aperture formed in the tube in an engagement direction radial to a longitudinal axis of the tube, the pin then being in an engaged position, - to be displaced, in a mounting direction parallel to the longitudinal axis, from the engaged position to a position in which the pin abuts the tube, in which position the pin is configured to prevent translational movements of the front link relative to the tube in the mounting direction and in a disengagement direction (D'120) opposite the engagement direction, the front link comprises a clip for locking the front link to the tube, the clip being configured to cooperate with one or more pin-receiving apertures, the clip is elastically deformable between a stressed configuration and a relaxed configuration and tends to spring back to its relaxed configuration, and the clip is arranged so that: - when the pin is in the engaged position, the clip is not aligned along the tube with the corresponding slot and is pushed by the external radial surface towards its constrained configuration, in which the clip does not prevent translational movements of the front link along the tube in the mounting direction or in a dismounting direction (D'202), opposite to the mounting direction, and - when the pin is in the stop position, the clip is aligned along the tube with the corresponding aperture, the clip returning by elastic return to its released configuration and being at least partly received in the corresponding aperture, so as to prevent translational movements of the front link along the tube in the disassembly direction (D'202), the latch then being in a configuration assembled to the tube, characterised in that the front link and the pins are made in a single piece. - when the pin is in the engaged position, the clip is not aligned along the tube with the corresponding slot and is pushed by the external radial surface towards its constrained configuration, in which the clip does not prevent translational movements of the front link along the tube in the mounting direction or in a dismounting direction (D'202), opposite to the mounting direction, and - when the pin is in the stop position, the clip is aligned along the tube with the corresponding aperture, the clip returning by elastic return to its released configuration and being at least partly received in the corresponding aperture, so as to prevent translational movements of the front link along the tube in the disassembly direction (D'202), the latch then being in a configuration assembled to the tube, characterised in that the front link and the pins are made in a single piece.