storm anchor

storm anchor

In roofing, a corrosion-resistant metal fastener having a flat base; the shank fastens the concealed lower corner of each shingle to the exposed edge of the adjacent shingle.
References in periodicals archive ?
But at other times they had to drop their storm anchor and wait for hours.
They dropped the storm anchor and sat out the typhoon.
Now you can easily store the spare and storm anchors you need.