A plastic screw grommet includes a head portion provided with a screwing hole for a tapping screw, and a leg portion expanded or prevented from deflecting by screwing the tapping screw. A hole diameter of the screwing hole is made smaller than an outer diameter of the above-mentioned tapping screw and larger than a root diameter of the tapping screw. Also, a projecting portion for filling a screw groove of the tapping screw to be screwed is formed in an inner face of the screwing hole.
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Published patent application
Disclosure date: 10-02-2007
Publication date: 01-19-2011
Applicant: NIFCO INC, JP
Inventor: SHIMIZU TOSHIAKI, JP ; OKADA TAKESHI, JP
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