Illinois Tool Works Inc.

Amy L Williams

Frank A Bondarowicz

Glenn G Heavens

James D Jones

William G Stlaske

Ryan W O'Nell

Henna Agha

A captive fastener retention member includes a cylindrical body having a flange at one end thereof. Work piece retention members project outwardly of the body for securing the retention member in a bore of a work piece. A dimple projects inwardly in the retention member to hold a fastener. The flange on the retention member rests against a work piece, and is shaped to inhibit scratching or gouging of the work piece surface.

Captive fastener

A threaded fastener having a threaded shaft with a head disposed on a portion thereof and a deflectable flange protruding outwardly from the shaft at or near the head. The deflectable flange has a generally concave surface facing toward a leading end of the fastener shaft. A protuberance is disposed on the shaft and spaced apart axially from the generally concave surface of the deflectable flange to limit compression of a fixture clamped between the fastener head and a work surface.

Threaded fastener and assembly

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Chicago, IL, United States of America

Amy L Williams