objects and or more demanding objects have to be supported by the fastener 10 this is especially so in the case that a given additional object not shown for purposes of clarity such as an air bag system for example has to be attached to the upper side 56 of the first object 46 if service is needed and partial or total removal of the assembly of elements from the metal sheet 52 is needed the screw s or bolt s 20 are unthreaded and the assembly is freed from the metal sheet 52 with the fastener however attached now to the metal sheet 52 after the service the elements may be attached in their initial position by using the screw or bolt 20 as shown in fig5 in a different embodiment of the instant invention better shown in fig6 the snapping segments 36 a and 36 b are disposed along the side body portions 34 a and 34 b respectively the fastener 10 in this case also may have secondary and tertiary engagement sections as well as other additional engagement sections not shown the operation of this embodiment is substantially the same as the operation of the above embodiments with the difference that the snapping segments 36 a and 36 b are disposed along the side body portions 34 a and 34 b instead along the opening 24 in still.