A pull-turn bolt latch for mounting in an opening in a thin wall, particularly for securing plug-ins, doors or flaps in switch cabinets, comprises a housing that can be secured in a non-round opening in a thin wall, a shaft which is provided with an external thread and which is mounted in the housing so as to be rotatable but fixed with respect to axial displacement, on which external thread a bolt provided with a matching threaded bore hole is guided in the housing so as to be acted upon by pressure by a spring engaging around the shaft such that when the shaft is rotated by hand or by a tool into the stop position at the outer end of the shaft or when the pressure is relaxed the bolt carries out a rotational movement with the shaft covering at least 90°, and in the position remote of the stop position accompanied by axial guidance, such as in an axial slot formed for the bolt in the housing carries out a translational movement in axial direction. The housing has a head part such as a flange which covers the outer edge of the opening in the mounted position, and a body part proceeds from this head part and penetrates the opening. The invention is characterized in that flexible holding elements project from the body part in direction of the outer surface thereof and form a self-locking contact surface or contact line or contact point for supporting the body part without play on the rim or edge of the opening.