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Pan head trilobular thread rolling screw 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) The screw shank has a three-lobe shape instead of a round cross-section, which reduces friction during installation, and facilitates smooth material displacement and efficient thread formation.
c) The long dog point (the extended, unthreaded tip of the screw) acts as a pilot, helping to align the screw with the pre-drilled hole during installation, and faciliates smooth installation.
d) A standard trilobe thread forming screw without dog point is avaialble upon request.
| Description | |
|---|---|
| Material | Carbon steel |
| Type | Heat treated |
| Driving recess type | Hexalobular socket 6 lobe recess |
| Head Type | Pan head shape |
| Thread Type | Thi-lobe thread rolling screw |
| Surface color | Plain finish / Zinc plated / Zinc nickel plated |
| Thread size / diameter | ∅ 2.0 - 8.0 |
| Type of end | Long dog point |
| Field of application | Automotive sector |
| Drive variations | Cross recess type Z (pozi) & Type H (phillips) |
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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.