The purpose of this article is to explore structural preconditions for occupational well-being among blue-collar temporary agency workers within the Swedish manufacturing industry based on managers’ views and expectations of the worker. Through 25 interviews, we investigate how blue-collar temporary agency workers are seen by management using critical realism and the concept of ‘norm circles’ to analyse spatial, relational, sociotechnical and normative structures. We show how structures and norm circles possess alienating or dealienating mechanisms that precondition blue-collar temporary agency workers’ occupational well-being. The findings indicate management’s role as an important gatekeeper in determining structural preconditions for blue-collar temporary agency workers’ occupational well-being. By introducing aspects of skill and acquired skill, along with social aspects changing over time, this article contributes to the existing literature on blue-collar temporary agency workers’ occupational well-being.