Fastening element

A fastening element for a member, the element having a dowel-like bushing which can be fixed in a bore formed in the fastening element wherein the bushing has an axial bore, an axially rotatable retaining pin having a slotted broadened head, the pin being supported in the bushing's axial bore and which can fix the member to be fastened between the slotted broadened head and the dowel bushing, comprising

• a shank for the retaining pin, said shank being provided with at least one substantially transversely extending groove having a base, a spring-loaded snap-in locking element for selective engagement within said groove in order to lock said retaining pin in the bushing and for disengagement with said groove to unlock said retaining pin from said bushing wherein said transverse groove for said retaining pin is curved in a sloping manner, said slope corresponding to a locking element disengagement therewith.

A fastening element for a member, the element having a dowel-like bushing which can be fixed in a bore formed in the fastening element wherein the bushing has an axial bore, an axially rotatable retaining pin having a slotted broadened head, the pin being supported in the bushing's axial bore and which can fix the member to be fastened between the slotted broadened head and the dowel bushing, comprising

• a shank for the retaining pin, said shank being provided with at least one substantially transversely extending groove having a base, a spring-loaded snap-in locking element for selective engagement within said groove in order to lock said retaining pin in the bushing and for disengagement with said groove to unlock said retaining pin from said bushing wherein said transverse groove further has an extension in a spiral shape that is inclined towards said groove end.

A fastening element for a member, the element having a dowel-like bushing which can be fixed in a bore formed in the fastening element wherein the bushing has an axial bore, an axially rotatable retaining pin having a slotted broadened head, the pin being supported in the bushing's axial bore and which can fix the member to be fastened between the slotted broadened head and the dowel bushing, comprising

• a shank for the retaining pin, said shank being provided with at least one substantially transversely extending groove having a base, a spring-loaded snap-in locking element for selective engagement within said groove in order to lock said retaining pin in the bushing and for disengagement with said groove to unlock said retaining pin from said bushing wherein the axial bore extends eccentrically relative to the axial bore of the dowel bushing said retaining pin shank being eccentric relative to the slotted retaining pin head, the head being a flush head and having a truncated part, and that the bore of the member to be fastened is provided with a reduced edge to said truncated part of the flush head.

A fastening element for a member, the element having a dowel-like bushing which can be fixed in a bore formed in the fastening element wherein the bushing has an axial bore, an axially rotatable retaining pin having a slotted broadened head, the pin being supported in the bushing's axial bore and which can fix the member to be fastened between the slotted broadened head and the dowel bushing, comprising

• a shank for the retaining pin, said shank being provided with at least one substantially transversely extending groove having a base, a spring-loaded snap-in locking element for selective engagement within said groove in order to lock said retaining pin in the bushing and for disengagement with said groove to unlock said retaining pin from said bushing further having a jacket partially surrounding said retaining pin, said jacket holding said retaining pin for axial rotation and restraining said retaining pin motion in an axial direction, said jacket having a cutout to uncover said transverse groove of the retaining pin, a stop, and a counterstop in the bore of the dowel bushing for combining with said stop to hold the retaining pin stationary at said counterstop.

A fastening element for a member, the element having a dowel-like bushing which can be fixed in a bore formed in the fastening element wherein the bushing has an axial bore, an axially rotatable retaining pin having a slotted broadened head, the pin being supported in the bushing's axial bore and which can fix the member to be fastened between the slotted broadened head and the dowel bushing, comprising

• a shank for the retaining pin, said shank being provided with at least one groove having a base, a spring-loaded snap-in locking element for selective engagement within said groove in order to lock said retaining pin in the bushing and for disengagement with said groove to unlock said retaining pin from said bushing
• said retaining pin shank having an annular ring groove, at least one spring-biased snap-in locking element, the dowel bushing guiding said locking element so that it is substantially displaceable in the axial direction,
• that said retaining pin shank has a thread between the head and said ring groove, the bushing having a female thread for engagement with said threaded shank, which bushing is held stationary with respect to the edge of the bore of the member to be fastened.