An enclosure can have an enclosure body, the enclosure body can include an enclosure frame, and a first enclosure flange. The enclosure can have a center post having a first end and an opposite second end, the first end can include a first center post flange having a hole extending therethrough. The enclosure can include a gasket having a gasket hole therethrough, and a threaded fastener to threadingly engage the hole. The threaded fastener can be configured to rotate in a first direction while threadingly engaged with the hole, and the threaded fastener can contact the first enclosure flange to increase a distance between the first enclosure flange and the first center post flange in order to receive the gasket.