High tensile strength and torsion strength due to large core cross section.
For reliable direct fastenings
Direct fasteners for plastics make thin-wall and flat designs possible. They offer material savings and shorter cycles for injection moulding. EJOT DELTA PT® screws also have a positive effect on overall connection costs: Direct fastening effectively reduces costs.
Small flank angles reduce radial stress and enable a thin-wall design.
Optimized thread pitch effectively prevents self-loosening of the screw.
The enlarged core cross section improves strength. Even in highly reinforced thermoplastics the fastener achieves high preload forces and tightening torques.
Use company-standard parts, like the EJOT DELTA PT®, to reduce your warehousing costs. Thanks to the best material selection with PT10 Q&T steel the screw has an extremely long service life.
The optimized material outflow at assembly ensures that the screw is perfectly seated.
In lightweight construction every gram is relevant. Unlike conventional joints, it is possible to use very short screws and small diameters.
Method and principle
EJOT DELTA PT® is the further development of the PT screw and the result of many years of practical experience with fastening thermoplastics. As a robust connection it guarantees top performance even under extreme implementation conditions.
Its special thread geometry is the result of thorough analysis of material displacement when forming thread. It ensures an optimal outflow of the deformed plastic material and ultimately a reliable and secure connection. The special variant EJOT DELTA PT P® is made of a high performance plastic (and is therefore suitable for lightweight and electrically or thermally insulating threaded screw connections in standard thermoplastics). The special variant EJOT DELTA PT DS has been specially developed for thermosetting plastics, which make special demands on the direct screw connection due to their hardness and brittleness.
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Information and more
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