Vibration isolating fastener

A vibration transmission inhibiting type fastener assembly adapted for attaching a first apertured member to a second member having a threaded opening therein, comprising:

• a fastener member having an enlarged head portion at one end and an elongated, threaded shank portion extending from said head portion whereby the threaded portion is adapted to engage the threaded opening of the second member;
• a sleeve member with a generally tubular body portion having an opening therethrough for receiving said shank portion of said fastener member, the sleeve member also having a radially and outwardly extending upper end portion adapted to be engaged by said head portion of said fastener member;
• a generally annularly shaped grommet of elastic material defining a central opening therethrough for insertion of said tubular body portion of said sleeve, said grommet further having a thin-walled lower end portion with a cylindrical outer surface which allows for easy insertion of said lower end portion into the first member's aperture;
• said grommet having an integrally formed annular bead portion which projects radially inwardly into said central opening whereby subsequent to insertion of said thin walled end portion in the aperture, insertion of said tubular portion of said sleeve into the grommet's central opening produces a radially outward distortion of said thin walled end portion which locks said grommet and sleeve in the aperture;
• said upper end portion is provided with an obliquely extending edge portion adjacent the radially outwardly extending portion whereby when pressing against said grommet member, the flow of said elastic grommet material is both radially outward and axially downward against the surface of the first member.