Abstract: A connector element for securement of one chain member including a plurality of links to a second chain member also including a plurality of links is disclosed. The connector element includes a pin portion and opposed head portions at the ends which define with the pin a pair of spaced shoulders. One head is enlarged so that its shoulder engages with a link to prevent passage therethrough. The other head may be received through the link and receives a deformable member thereover to cooperate with its shoulder. The member is of a size to cooperate with the link and prevent passage of the connector element in the other direction.