An electrical connector includes a male element and a female element configured to form a rivet for fastening the electrical connector to a piece of material; and a neck washer, which has a washer portion and a neck portion and which is configured to be placed between the male element and the female element of the rivet. The washer portion is configured to form an electrical connection area for an electrical conductor of the piece of textile and the neck portion is configured to electrically connect the washer portion to at least one of the male element and the female element. The electrical connector can be used independently of the position of the electrical conductor in relation to one or more layers of materials in the piece of material.