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6 lobe pan washer head tapping screws for thermoplastics
a) A self-tapping screw for thermoplastics is a specialized fastener designed to create its own threads as it is driven into plastic materials.
b) These screws have wider, sharp, and deep threads, which allow them to cut into the softer thermoplastic material efficiently, creating a secure, long-lasting hold.
Phillips hex washer head Trilobe thread rolling screws DIN 7500
a) DIN 7500 specifies self-tapping screws for metal, also known as thread-forming screws. These screws are designed to form or cut threads in a pre-drilled hole in metal materials, without requiring a pre-cut thread.
b) Three indentations on the thread allow better debris clearance and assist in the thread-forming process.
c) A standard trilobe thread forming screw without indentations is avaialble upon request.