Push-in removable fastener

Details Push-in removable fastener Push-in removable fastener

2005-12-27

2005-12-27

Miller, William L. (Department: 3677)

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

Externally threaded fastener element, e.g., bolt, screw, etc.

Thread or shank structure

C411S508000, C411S424000

Reexamination Certificate

active

06979163

ABSTRACT:
A plastic push-in or drive fastener having a enlarged head and a shank is disclosed. The fastener is configured to allow the shank to be pushed through a complementary shaped aperture or opening in an article using a relatively low insertion force. A helical screw or rib formation on the fastener shank provides a retention force opposing the fastener from being axially withdrawn from the article while readily permitting withdrawal of the fastener from the article in response to rotation of the fastener about its axis. Moreover, the fastener shank is configured to prevent inadvertent separation of the fastener from the article through which it passes.

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