General description A pack of 100 self-drilling screws, also known as tek screws, which can be used without the need for a pilot hole. These screws feature a Phillips pan head drive for easy installation. Technical specifications Type: Self-drilling screws (tek screws) Head: Phillips pan head Material: Zinc plated Standard: DIN7504N Size: No.8 x 1" (4.2mm x 25mm) Quantity: 100 pieces