Self-Drilling Screw is similar to a Self-Tapping Screw, but the only difference between the both is that it has an added drill feature on it. It’ll drill a hole and form the mating threads in one-shot. Swarna Fasteners, being one of the most resourceful Self Drilling Screw Manufacturers In Delhi, have different types of screws available in our product catalogue. We offer them in a variety of features, sizes, threads and standards to meet the special requirements of our clients. Before you buy, have a look at the following points.