• Don Quichotte self-tapping screws 3.2 x 40 mm galvanized in blue color • Specially designed for fastening switch and socket devices in flush-mounted boxes or hollow wall boxes • Also suitable for fastening covers • Feature self-tapping thread that facilitates insertion and improves holding • Double thread allows for reduced screwing time and speeds up work • Combined cross slot drive, offering more options for screwdriver selection • Supplied in a box of 100 units