Patent ID: 8210315

Claim:
A component assembly comprising a sheet metal part ( 10 ) and a nut element ( 12 ) attached thereto, the nut element being arranged concentric to an opening ( 14 ) of the sheet metal part ( 10 ) and being adapted to receive a bolt element ( 16 ) having a shaft part ( 18 ) with a thread and a head part ( 20 ) adapted to seal against an underside of said sheet metal part, wherein the nut element ( 110 ) is provided with a cylindrical rivet section ( 112 ), a flange section ( 114 ) which projects radially away from the cylindrical rivet section ( 112 ) generally perpendicular to the latter and with a fastener section ( 118 ) which lies generally opposite to the cylindrical rivet section ( 112 ), with the flange section ( 114 ) including an outer annular or annular sheet metal contact surface ( 120 ), wherein an annular groove ( 122 ) is provided adjacent to the cylindrical rivet section ( 112 ) and surrounds the cylindrical rivet section ( 112 ) radially inside the outer annular sheet metal contact surface; wherein a plurality of spaced-apart radial ribs ( 124 ) cross or bridge the groove ( 122 ); wherein the fastener section ( 118 ) includes a bore having a thread ( 126 ) which is coaxially directed relative to the cylindrical rivet section ( 112 ) and wherein one or a plurality of oil drain grooves ( 130 ) extending in the radial direction interrupt the annular sheet metal contact surface; wherein the opening of the sheet metal part has a rim with alternately radially inwardly projecting sections ( 132 ) and radially outwardly projecting cut-outs ( 136 ) with the radially inwardly projecting sections ( 132 ) being bent upwardly and being clamped between the rivet bead ( 140 ) formed from the cylindrical rivet section ( 112 ) and the base of the annular groove and wherein at least one of the radially extending grooves ( 130 ) is aligned with one of the radially outwardly facing sections ( 136 ) in order to allow oil to flow from the surface of the sheet metal part ( 10 ) through this groove and through the opening of the sheet metal part, i.e. through the radially outwardly facing cut-outs ( 136 ).