| 摘要 |
Provided is a sealing plug (10) which seals a through-hole (210) formed in a wall (200) comprising a main shaft (14) which is placeable in the through-hole (210). The main shaft (14) includes: a base (12); and a tip (13) connected to a leading end of the base (12) and having a cross section having an outer edge that is smaller than or equal to an outer edge of a cross section of the leading end of the base, the cross sections each being in a plane perpendicular to an axial direction of the main shaft. The base (12) includes: a thick portion (12a) having, in a plane perpendicular to the axial direction of the main shaft (14), a cross section having a largest outer edge; and a side surface portion (12b) having an outer edge which decreases in size from the thick portion (12a) towards the tip (13). |
