EJOT DELTA PT® Self-tapping fastener for plastics The EJOT DELTA PT® has been developed from many years of practice in the field of fastening thermoplastic materials. Several years of research have led to the conclusion that the clamp load of thermoplastic joints can be calculated (VDI 2230). A prognosis program and the DELTA PT® srew with it's optimised thread geometry were developed. The result is a tough fastener that gives safety and reliability even in extreme applications. Advantages of the EJOT DELTA PT® screw - minimised radial stress due to small thread flank angle - optimal material flow - higher safety from self-loosening due to optimum thread pitch - substantially increased service life of the screw joint - high tensile strength - high torsion strength - use of shorter fasteners and/or smaller diameters possible compare to ordinary screw joints - material through hardened steel PT10 - cost effective by use of standardised (WN) parts - DELTA PT® prognosis software allows a clamp load orientated engineering