Self Tapping Screws are ideal for objects that require periodic maintenance and where two different materials are combined together. These self tapping screws gives a good feeling. They come in different sizes, shapes and different heads, blunt, sharp, flat and piercing tips depending on the area of application. Choosing the right self tapping screw with the correct length is the knack. For the screws to work properly and solve the purpose, they should be drilled fully and properly. Results in proper fastening.