Holding fastener

A holding fastener to be connected to an attachment member comprising:

• a shank adapted to be inserted into a mounting hole of the attachment member;
• a first holding portion disposed at one end of the shank and adapted to extend radially and outward from the mounting hole of the attachment member to hold one surface of the attachment member;
• a second holding portion disposed at the other end of the shank and adapted to hold the other surface of the attachment member, the second holding portion including a holding piece connected to the shank through a hinge to allow the holding piece to be rotated between an insertion position that extends along the axis of the shank and a holding position that extends orthogonal to the axis of the shank;
• the shank includes a hollow portion;
• an insertion tube is provided at the one end of the shank and is adapted to be inserted axially into the hollow portion of the shank from the side of the first holding portion to the side of the second holding portion, wherein the holding piece and the insertion tube are cooperatively formed so that the end of the insertion tube inserted into the hollow portion of the shank allows the holding piece to be rotated from the insertion position to the holding position to be locked at the holding position;
• wherein the insertion tube includes a hollow portion to allow a stud bolt to be inserted thereinto, wherein the insertion tube includes an engagement pawl adapted to be engaged with a thread of the stud bolt;
• and
• wherein the end of the engagement pawl is located outside the outer periphery of the insertion tube before the insertion tube is inserted into the shank;
• and when the insertion tube is inserted into the shank, the engagement pawl is moved toward the inside of the insertion tube by the inner wall of the shank to position the end of the engagement pawl at the inside beyond the inner wall of the hollow portion of the insertion tube.

A holding fastener to be connected to an attachment member comprising:

• a shank adapted to be inserted into a mounting hole of the attachment member;
• a first holding portion disposed at one end of the shank and adapted to extend radially and outward from the mounting hole of the attachment member to hold one surface of the attachment member;
• a second holding portion disposed at the other end of the shank and adapted to hold the other surface of the attachment member, the second holding portion including a holding piece connected to the shank through a hinge to allow the holding piece to be rotated between an insertion position that extends along the axis of the shank and a holding position that extends orthogonal to the axis of the shank;
• the shank includes a hollow portion;
• an insertion tube is connected integrally to the one end of the shank and is adapted to be inserted axially into the hollow portion of the shank from the side of the first holding portion to the side of the second holding portion, wherein the holding piece and the insertion tube are cooperatively formed so that the end of the insertion tube inserted into the hollow portion of the shank allows the holding piece to be rotated from the insertion position to the holding position to be locked at the holding position;
• and
• wherein the shank is provided with a window, and the insertion tube is provided with an engagement pawl which is adapted to engage the window of the shank when the insertion tube is inserted into the hollow portion of the shank.