A fastener kit can securely affix a washing machine on a lightweight wall. The washing machine includes a rear panel for coupling to the wall through the fastener kit. A tub configured to contain washing water may be integrally formed with the rear panel. The fastener kit has an anchor rod with one end section forming tight contact with the inner surface of a fastening hole on the lightweight wall by using a chemical anchor. The other end section of the fastener kit is coupled to the rear panel.