• Set of 1200 self-tapping screws with cross-head design. • Made of high-quality carbon steel, resistant to corrosion and rust. • Includes 10 different sizes: M1, M1.2, M1.4 and M1.7 with lengths from 3 mm to 6 mm. • Phillips head design with clear threads to prevent side slipping. • Round flat head provides uniform force and better fastening effect. • Assortment stored in a transparent plastic box with compartments for better organization. • Suitable for repair and installation of computers, watches, glasses, phones, and electronic devices.