Mat fastener

A mat fastener for preventing a mat disposed on a carpet provided on a vehicle body panel from moving, the mat fastener comprising:

• a first fixing member fixed to the carpet;
• a second fixing member fixed to the mat;
• and
• an operational mounting member configured to mount the second fixing member to the first fixing member,
• wherein the first fixing member comprises
• a supporting portion configured to support the operational mounting member and formed to have a cylindrical shape, and
• an engaging portion configured to hold the second fixing member,
• wherein the second fixing member comprises
• a locked portion configured to be locked on the operational mounting member,
• an engaged portion configured to be engaged with the engaging portion in a state where the second fixing member is mounted to the first fixing member, and
• a barrel portion formed to surround an outer periphery of the supporting portion,
• wherein the engaging portion and the engaged portion comprise a convex portion and a concave portion to which the convex portion is mounted,
• wherein the convex portion has a rib shape of protruding in a radial direction and extending in an axial direction at either one of the outer periphery of the supporting portion and the inner periphery of the barrel portion,
• wherein the concave portion has a trench shape formed by a pair of raised portions extending in an axial direction at either one of the outer periphery of the supporting portion and an inner periphery of the barrel portion, and
• wherein a direction of mounting the convex portion to the concave portion is along a direction of mounting the second fixing member to the first fixing member.