Patent ID: 7927021

Claim:
A fastening device, comprising: a cylindrical basic body; at least one spring element having at least one angled shoulder, the shoulder being angled in hook form from the basic body radially outward and at least partially back in an axial direction; and at least one push element which is integrally formed on the fastening device and which is operatively connected to the at least one spring element in such a way that, by the at least one push element being actuated, the at least one spring element can be prestressed and braced axially, wherein the at least one spring element is formed from at least one spring collar integrally in one piece on the basic body, the spring collar being overturned to form a first bend radius such that the spring collar projects at least partially beyond the basic body axially, and the at least one push element is formed from a push collar integrally formed in one piece on the basic body, the push collar being overturned to form a second bend radius, such that the push collar projects at least partially beyond the basic body axially, and wherein the spring collar of the at least one spring element projects radially further than the push collar of the at least one push element.