Patent ID: 9651074
Date: 2017-05-16
CPC Classifications: F16B,F16L,Y10T

Claim:
1. A connection system ( 1 ) for detachably connecting a component element to a coated component part ( 3 ), comprising a coupling element ( 2 ) that has a head ( 6 ) with a non-round outer cross-section and has a shank ( 5 ), wherein the head ( 6 ) is received by means of an interlock in rotationally fixed manner in a head region ( 11 ) of a connection opening ( 4 ) of the component part ( 3 ), and the shank ( 5 ) is secured stationarily in a frictionally held manner or firmly bonded manner in a sealing region ( 12 ) of the connection opening ( 4 ), and the head ( 6 ) has an internal geometry for connecting the component element, wherein the coupling element has an axial passage opening, inside walls of the shank ( 5 ) that receive a component element and that extend along a longitudinal axis of the shank are smooth, and the coupling element comprises a corrosion-resistant material, wherein the connection system ( 1 ) further comprises the component part ( 3 ), wherein the component part ( 3 ) has a coating ( 15 ) which extends over an interface between the coupling element ( 2 ) and the component part ( 3 ), the coating ( 15 ) reliably preventing corrosive media to flow the between the shank and sealing region of the component part ( 3 ).