Two-hundred and four blue-collar employees participated in a study in which we tested for the effects of individualism/collectivism (I/C) orientations (solitary work preference, supremacy of individual goals, competitiveness, and self-reliance dimensions) and perceived task interdependence on two employee attitudes: team loyalty and prosocial behavior. We found support for the hypothesis that perceived task interdependence had positive effects on team loyalty and prosocial behavior. Further, solitary work preference, supremacy of individual goals, and self-reliance dimensions of I/C had main effects on loyalty to the team. The supremacy of individual goals dimension of I/C also had a main effect on pro-social behavior. We also found that task interdependence moderated the relationships between solitary work preference and pro-social behavior. The implications of our findings are discussed.