<https://holemoleconcrete.com/product/coupling-nut-for-%c2%bc-20-threaded-rod/#product>
<http://schema.org/description>
"These are coupling nuts to make extended rods out of our standard threaded rods."
<https://holemoleconcrete.com/product/coupling-nut-for-%C2%BC-20-threaded-rod/>