1978-01-12
1979-06-12
Schultz, William H.
85 42, F16B 2700
Patent
active
041576748
ABSTRACT:
A collar stud assembly for attachment to a plastic boss having a bore therein comprises a double-ended fastener and a sheet metal cap. The double-ended fastener has a shank with a first thread suitable for threading into plastic on one end thereof, a second thread adapted to threadingly engage a nut or other threaded member on the other end thereof and a collar integral with the shank between the first and second thread for limiting the threading movement of the fastener into the bore of a plastic boss. The shank extends beyond the first thread and includes a raised ring at the end of the first thread for holding the metal cap in position for seating on a plastic boss and a knurl which is spaced from the end of the first thread and which provides a shoulder upon which the metal cap rests. The metal cap is adapted to fit over the end of a plastic boss and the top of the cap is captivated on the land of the shank between the knurl and raised ring.
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patent: 2827318 (1958-03-01), White
patent: 3009176 (1961-11-01), Knocke
patent: 3521349 (1970-07-01), Gehring
Carlson Kenneth R.
Fry Arthur R.
Elco Industries, Inc.
Schultz William H.
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