Drain bolt
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United States of America Patent
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-
Mar 7, 1989
Grant Date -
N/A
app pub date -
Feb 8, 1988
filing date -
Apr 9, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A drain bolt wherein a recess is formed at the end of a male-threaded portion of a bolt body, and a sinker portion of a synthetic resin magnet is embedded in the recess of the bolt body so that a projecting portion of the magnet is projected from the end of the male-threaded portion of the bolt body. The projecting portion of the synthetic resin magnet is larger in diameter than the sinker portion. A plurality of grooves are formed on the side of the projecting portion of the synthetic resin magnet along its length.
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