Biondi’s International Trading

Tek screws are self drilling screws. Tek is actually the renowned brand name of self-drilling screws. This means you don’t need to drill a hole before installing these screws. Of course, however, tek screws can be used on soft materials only such as wood and thin metal. Its self-tapping thread and drilling point allow them to be installed without using a drill.

Screws are headed and have a cylindrical, threaded body as well. However, the thread on screws are capable of piercing a surface. Also screws do not require nuts and washers to keep them in place. For this reason, screws may be drilled directly into a surface while bolts require a pre-drilled hole. This is why the opposite end of screws are usually sharp–to help pierce a surface easily.

Screws are also a major category of threaded fasteners. Screws and bolts share a lot of likenesses such as being made of metal and being characterized by a helical ridge. They are both used to fasten materials by the engagement of the screw thread or the external thread with a similar internal thread in the matching part.