by Anarion-(TV)
Nov. 14, 1999
Objects > Weapons > Chains > Angainor

    The chain with which Morgoth was bound was made stronger than all other chains by Aulë, the smith of the Valar. After Tulkas had cast Morgoth on his face, he was bound with the chain and taken before the Valar before being imprisoned in the Halls of Mandos for three Ages.

Reference:  The Silmarillion

see also
: Tilkal