chainplate
/ˈtʃeɪnplæt/Definitions
1. noun
A metal fitting attached to the side of a boat or ship, that connects the mast to the hull by way of a shroud or stay.
“The boat’s chainplates were rusty and needed to be replaced for safety.”
2. noun
A metal plate used to secure a chain or rope to a post or other structure.
“The chainplate on the dock was damaged and needed repair.”