chain
a serial assembly of connected pieces, called links, typically made of metal, with an overall character similar to that of a rope in that it is flexible and curved
saw chain
key component of a chainsaw
driving chain
chain for transmission of mechanical energy
Shank painter
short rope or chain by which the shank of an anchor is held fast to a ship's side when not in use
collar
ornate chain worn about the neck as a symbol of membership in various chivalric orders
jack chain
type of chain made of thin wire, with figure-eight-shaped links
slave chains
chains used to restrain enslaved people
ball chain
type of chain link
anchor chain
chain used in boating
door chain
security device attached to a door
jewellery chain
jewellery made links of, or imitating, precious metal and worn as an ornament