The chipless thread forming process was introduced in 1961 with TAPTITE fasteners as a worldwide standard. Later developments like the TAPTITE II and the DUO-TAPTITE fasteners addressed ever increasing technical requirements.
The different properties of the TAPTITE II and the DUO-TAPTITE fasteners are combined in the TAPTITE 2000 and further enhanced with the special Radius Profile™ thread. This means even lower insertion torque and higher pre-tensioning strength, while the conical tip over the first 2 to 2.5 thread turns (SP™ version) decisively improves insertion.
The special thread forming screw for applications over M5 has a less pronounced Trilobular form in the load-bearing threaded area, and offers a much greater resistance to stripping out, and thus a much stronger joint. The tip profile with two stabilizing threads helps to ensure perpendicular insertion.