Thread Forming Screws - Hex Head

Often abbreviated to Hex head, hexagon heads are found on most common bolts and set screws, this is a six-sided head that requires a socket or spanner to fasten. You can also use a tool called a nut spinner or nut driver to fasten a hexagon head – this is effectively a screwdriver with a socket head instead of a blade or Posi drive end.

Thread forming screws are also commonly called taptites or tritap screws, or sometimes thread rolling screws. They are used to form threads during insertion, usually in metal, to eliminate the need for thread tapping as a separate process.

Thread forming screws are manufactured from case hardened steel and are zinc plated. They have what is called a trilobular thread pattern – which actually means three lobes, signifying a shape that is “triangle-round”. This unusual thread pattern reduces friction as the thread is being formed, and adds resistance to vibration.

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