FIXING SYSTEM BETWEEN PLASTIC ENGINEERING SCREW AND LIGHT METAL COMPONENT AND METHOD FOR SCREWING PLASTIC ENGINEERING SCREWS IN LIGHT METALS

摘要

The present invention includes a self-tapping plastic engineering screw (4a, 4b) having a first diameter (d ₀ ); Light metal parts 2 of automobile optical modules; It relates to a fixing system (1) for a vehicle optical module comprising, the light metal part (2) comprises pre-bored holes (6a, 6b), the pre-bored holes (6a, 6b) are plastic engineering screws (4a, 4b) and has a second diameter (D), the second diameter (D) is greater than the preset value, and the value of the second diameter (D) is at least according to the value of the first diameter (d ₀ ) As determined, the self-tapping plastic engineering screws 4a, 4b can be screwed into the pre-bored holes 6a, 6b.