A substantially U-shaped universal fastener for cooperative association with a pair of leg receptor slots in a substrate to fasten an elongated body therebetween, said fastener comprising two separated substantially parallel elongated flexible leg members joined at one end by a tying member, each of said elongated leg members having an interior and an exterior side, and on each of said interior and exterior sides, and a plurality of flanged flexible stop members vertically inclined toward said tying member.