[M4×L4]

The head is the same shape as the screw part, and has a hexagonal hole. Tighten using a hex key (hex wrench). Use to press the tip of the screw onto the other part to secure it. The screw tip is flat, making it suitable for applications where you do not want to scratch the other parts. Enameled set, also known as imo screws. RoHS 2 compliant product.