Plastic nut having metallic insert imbedded therein

Claim 1

A WEDGING FASTENER COMPRISING A BODY OF FORMABLE RELATIVELY HARD BUT YIELDABLE PLASTIC MATERIAL HAVING AN ORIFICED HEAD AND A PLURALITY OF INTERGAL LEGS DEPENDING THEREFROM IN SPACED APART RELATION FORMING A CHANNEL THEREBETWEEN DISPOSED IN EGISTRY WITH THE ORIFICE IN SAID HEAD, SAID ORIFICE AND SAID CHANNEL JOINTLY FORMING A PASSAGE FOR THE SHANK OF A SCREW THREADED STUD, SAID PASSAGE BEING OF LESS DIAMETER THAN THAT OF THE SHANK OF SAID STUD, SAID LEGS BEING CAPABLE OF PASSAGE THROUGH AN ORIFICE IN A MEMBER TO RECEIVE SAID FASTENER AND BEING THREADLY ENGAGEABLE BY AND SPREADABLE BY SAID SCREW SHANK TO ANCHOR SAID FASTENER TO SAID MEMBER, SAID LEGS BEING NONCIRCULAR IN CROSS-SECTION AS TO PREVENT ROTATION OF THE FASTENER WHEN LOCATED IN AN ORIFICED RECEIVING MEMBER AND BEING ELARGED INTERMEDIATE THEIR EXTNET SUBSTANTIALLY TO FORM LATERALLY AND OUTWARDLY EXTENDING OPPOSED APICES, SAID HEAD HAVING A CENTRALLY ORIFICED PLATE OF RELATIVELY THIN TRUST RESISTING METAL EMBEDDED THEREIN, WITH ITS ORIFICE IN REGISTRY WITH AND OF A DIAMETER SUBSTANTIALLY THE SAME AS THE DIAMETER OF SAID HEAD ORIFICE SO THAT THE PERIPHERY OF THE FORMER BORDERS ON THE PERIPHERY OF THE LATTER, SAID PLATE HAVING TANGS STRUCK THEREFROM, ONE ON EACH SIDE OF ITS ORIFICE FORMING ENLARGED ORIFICES IN SAID PLATE FOR PASSAGE THERETHROUGH OF SAID BODY MATERIAL, SAID TANGS BEING BENT AT A POINT ADJACENT TO SAID ORIFICE AND BEING DISPOSED IN SUBSTANTIALLY PARALLEL SPACED APART RELATION TO ONE ANOTHER SUBSTANTIALLY NORMAL TO SAID PLATE AND EMBEDDED IN SAID EXPANDABLE LEGS TO PROVIDE SHEAR RESISTING MEANS CROSSING THE LINE OF SHEAR BETWEEN SAID BODY AND SAID LEGS, SAID BODY AND SAID PLATE BEING JOINTLY ENGAGEABLE WITH THE THREADS OF SAID STUD WHEN IN USE AND JOINTLY RESISTING THE THRUST OF A STUD ENGAGED IN SAID FASTENER, SAID BODY ACTING ADDITIONALLY TO RETAIN SAID STUD FROM LOOSENING