Patent ID: 8037582

Claim:
A fastener comprising: a fastener body that includes: a cylindrical portion that includes an insertion hole formed to penetrate therethrough from one end face to the other end face thereof; and a locking portion that protrudes outward from the other end face of the cylindrical portion; and an unlocking member that is formed to be inserted into the insertion hole, wherein the locking portion is formed to be inserted into an attachment hole of an attachment object from a front side, and to be exposed from the attachment hole from a rear side, wherein the locking portion includes an elastic claw that is locked to an edge of the attachment hole at the rear side, wherein the elastic claw is elastically reducible in diameter, wherein the unlocking member is movable in a position rearward of the elastic claw in a direction from the one end face to the other end face of the cylindrical portion, wherein the locking portion is reduced in diameter when the unlocking member is pushed, wherein the locking portion includes an extension part that is continuously formed with the elastic claw, wherein the unlocking member is brought into contact with the extension part when the unlocking member is pushed, and wherein the extension part is formed at a distal end of the elastic claw.