Mounting arrangement for electrical wiring devices having non-metallic mounting strap
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United States of America Patent
Stats
-
Jun 5, 1990
Grant Date -
N/A
app pub date -
May 13, 1988
filing date -
May 13, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A mounting screw for mounting an electrical wiring device having non-metallic components, to an electrical outlet box and combination of root electrical wiring device and screw. The screw includes a head and a shank, with a lip projecting downwardly from the bottom surface of the screw head spaced from and encircling the shank, and a series of ribs extending radially outward between the shank and the lip. Advantageously the mounting screw is in combination with an electrical wiring device having non-metallic mounting straps so that when the screw is installed by a power tool, the lip-and-ribs arrangement on the screw bites into the mounting strap material to produce resistance to the turning of the power tool signaling the operator that the screw is secure.
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