A hole seal is disclosed including a cover having a body with an inner surface and an outer surface and an end portion attached to a first end of the body. The inner surface of the body includes a threaded portion, and the outer surface of the body includes an annular array of ribs disposed thereon. Each of the ribs has a predefined collapsible direction. The end portion includes a seal disposed on a peripheral edge of the end portion. The hole seal further includes a cap having an inner member and an outer portion. The inner member includes a threaded portion that is configured to cooperate with the threaded portion of the inner surface of the body.