US Patent 9309972 Hole plug

In a case wherein a force acts upward from below on a face plate (34) of a hole plug (14) that is closing an attachment hole (12) of a body panel (10), the face plate (34) is pushed up, and an intermediate wall portion (26) moves upward relative to an outer circumferential wall portion (18). At that time, an outside portion (40B) of an abutment portion (40) is folded inward, and an inside portion (40A) of the abutment portion (40) abuts against an inside face of a lower portion of the outer circumferential wall portion (18). As a result, the inside portion (40A) of the abutment portion (40) can control engagement claws (20) from deforming inward.