grummet grummet /ˈgrʌmɪt/

noun

1. Fastener consisting of a metal ring for lining a small hole to permit the attachment of cords or lines  ( cringle , eyelet , grommet , grummet , loop )
   fastener consisting of a metal ring for lining a small hole to permit the attachment of cords or lines
    I used a metal loop to secure the rope to the wall.
   I used a metal loop to secure the rope to the wall.