PT screws thread forming screws for plastic steel screws manufacturer
PT screws feature a high thread profile and recessed thread root providing increased thread engagement with minimal stress. The EJOT DELTA PT has been especially developed for screw joints in thermoplastics. The thread geometry creates low surface pressure and provides a high clamp load of the joint. Excellent long-term performance is obtained under thermal and dynamic loads. The innovative geometry of the EJOT DELTA PT screw results in a robust fastener which guarantees reliability even in complex designs and extreme applications. Both families of screws ideally suit thermoplastic applications. Ever Hardware provides custom made PT screws and customizable packaging.
Galvanization, or galvanisation, (or galvanizing as it is most commonly called in that industry), is the process of applying a protective zinc coating to steel or iron, to prevent PT screws rusting. The most common method is hot-dip galvanizing, in which parts are submerged in a bath of molten zinc. Galvanizing protects in three ways:
It forms a coating of zinc which, when intact, prevents corrosive substances from reaching the underlying steel or iron.
The zinc serves as a sacrificial anode so that even if the coating is scratched, the exposed steel will still be protected by the remaining zinc.
The zinc protects its base metal by corroding before iron. For better results, application of chromates over zinc is also seen as an industrial trend.
Hot-dip galvanizing is the process of immersing iron or steel in a bath of molten zinc to produce a corrosion resistant, multi-layered coating of zinc-iron alloy and zinc metal. While the steel is immersed in the zinc, a metallurgical reaction occurs between the iron in the steel and the molten zinc. This reaction is a diffusion process, so the coating forms perpendicular to all surfaces creating a uniform thickness throughout the part.
Ever Hardware is a young company, but we are not a young team.
contact to [email protected]
|Thread type||Plastic tapping thread|
|Material||Steel or Stainless steel/Aluminum/Titanium|
|Place of origin||China Mainland|
|Size option||M1.0 to M30|