FIXING MEMBER FOR VEHICLE

In a fixing member, for a vehicle, that is engaged and fixed with an insertion engagement part inserted into a through hole of a plate-shaped member, the fixing member for a vehicle is allowed to be more easily and reliably detached from the through hole. In a fixing member 10 for a vehicle in which, by inserting a support column 11 and elastic locking pieces 12 into a through hole 101 of a plate-shaped member 100 for a vehicle from the upper end side of the support column 11, the elastic locking pieces 12 lock a surrounding portion of the through hole 101 from the far side in an insertion direction I and the distal end having an annular shape of a contact main portion 13A annularly contacts the surrounding portion of the through hole 101 from the near side in the insertion direction I, whereby the fixing member 10 is engaged and fixed to the plate-shaped member 100, a dish-like contact portion 13 is provided with a bent portion 13B extending obliquely downward from the distal end of the contact main portion 13A, and a reinforcing rib 13C formed in a projecting manner so as to extend across lower surfaces 13a, 13b thereof.