Abstract: The invention relates to a screw (IO) in order to cut a mating thread in a plastic article, comprising a lower threaded part (F) and an upper threaded part (T), the lower threaded part having a larger diameter and its tip covering a larger surface than the upper threaded part.

Abstract: The invention relates to a screw (IO) in order to cut a mating thread in a plastic article, comprising a lower threaded part (F) and an upper threaded part (T), the lower threaded part having a larger diameter and its tip covering a larger surface than the upper threaded part.

Abstract: A self-tapping screw (10, 30) comprising a drive (12) and a shank (14) bearing a thread comprising a main thread (16, 32), wherein the main thread (16, 32) has a maximum main thread external diameter (DAF) and a cutting area (F) and a supporting area (T) following in the direction of the drive (12), wherein the shank (14) has a threaded end (18) at an end opposite the drive (12), with the screw end (18) having a diameter (DE) of at least 20% of the maximum main thread external diameter (DAF), The shank further has, in the region of the screw end (18), a tap flute (20), wherein the tap flute (20) comprises at least two tapping thread turns (20a, 20b, 20c) which attain, in their external diameter (DAA), no more than 90% of the maximum main thread external diameter (DAF) and form a tap region in which the tapping thread turns (20a, 20b, 20c) have the same diameter development, and in addition in that the diameter of the main thread (16, 32) in the tap flute region (AB) is less than or equal to the diameter (DAA)

Abstract: The invention relates to a screw (IO) in order to cut a mating thread in a plastic article, comprising a lower threaded part (F) and an upper threaded part (T), the lower threaded part having a larger diameter and its tip covering a larger surface than the upper threaded part.

Abstract: A self-tapping screw (10, 30) comprising a drive (12) and a shank (14) bearing a thread comprising a main thread (16, 32), wherein the main thread (16, 32) has a maximum main thread external diameter (DAF) and a cutting area (F) and a supporting area (T) following in the direction of the drive (12), wherein the shank (14) has a threaded end (18) at an end opposite the drive (12), with the screw end (18) having a diameter (DE) of at least 20% of the maximum main thread external diameter (DAF), The shank further has, in the region of the screw end (18), a tap flute (20), wherein the tap flute (20) comprises at least two tapping thread turns (20a, 20b, 20c) which attain, in their external diameter (DAA), no more than 90% of the maximum main thread external diameter (DAF) and form a tap region in which the tapping thread turns (20a, 20b, 20c) have the same diameter development, and in addition in that the diameter of the main thread (16, 32) in the tap flute region (AB) is less than or equal to the diameter (DAA)

Abstract: Connecting nut for screwing structural elements onto a panel-like component (5, 58), said connecting nut comprising a retaining element (2, 3; 56) in abutment with a nut part (1, 62) for attachment to the component. This is a two-part design with nut part (1, 62) and securing part (4, 53), said nut part (1, 62) and securing part (4, 53) enclosing the component (5, 58) between them, said securing part (4, 53) penetrating a through-hole (13, 14; 28, 29; 31; 32; 57) in the component (5, 58) with a snap-action hook (7, 8; 26, 27; 54) and being connectable to the nut part (1, 62). A receiving bore (11, 12; 59) in the retaining element (2, 3; 56) receives the snap-action hook (7, 8; 26, 27; 54), said snap-action hook (7, 8; 26, 27; 54) latching into the retaining element (2, 3; 56).

Abstract: The invention relates to a plastic nut having a receiving bore into which a self-tapping screw can be screwed, it being the case that the receiving bore forms a through-passage region and has an adjoining, narrower region which has a diameter which allows the self-tapping screw to be screwed in, the receiving bore forming one or more steps at its transition to its narrower region via thread-like slope.

Abstract: The invention relates to a plastic nut for inserting into a through-hole in a panel-like component, the plastic nut comprising retaining parts, of which one is designed as a flange which can be pressed onto the component from the fitting side and another is designed as snap-action hooks which can be pressed on from the opposite side and are intended for latching in behind the component, the retaining parts being provided with a nut part which has a receiving bore for a screw, the flange being a constituent part of a flange part which encloses the nut part, and it being possible for the nut part to be pressed in the direction of the flange, in which case the nut part, which can be moved axially with respect to the flange part, is pressed in the direction of the flange part by an elastic supporting arrangement which forms a spring zone, it being the case that, once the plastic nut has been inserted, the spring zone brings the nut part and the flange part into abutment against the component, different thicknesse