Nut enclosed in plastic bearing member

Claim 1

IN COMBINATION WITH A MEMBER HAVING A CONCAVE APERTURED RECESS AND A MALE THREADED MEMBER PASSING THROUGH SAID RECESS, A NUT ASSEMBLY INCLUDING A METALLIC NUT BODY HAVING A THREADED BORE THREADABLY ENGAGING SAID MALE THREADED MEMBER AND AN OUTER PERIPHERY OF REGULAR HEXAGONAL CROSS SECTION, A SYNTHETIC RERSINOUS BEARING MEMBER HAVING A CENTRAL CAVITY OF A CROSS-SECTIONAL SHAPE CLOSELY FITTING THE OUTER PERIPHERY OF SAID NUT BODY, SAID NUT BODY AND SAID CAVITY BEING A HEXAGONAL CROSS SECTION, SAID CAVITY BEING OPEN AT THE OPPOSITE ENDS OF SAID BEARING MEMBER, A CONVEX OUTER SURFACE ON ONE END OF SAID BEARING MEMBER SLIDABLY ENGAGING IN SAID CONCAVE RECESS WITH THE DIAMETER OF THE OPENING AT SAID ONE END BEING LESS THAN THE MINIMUM EXTERNAL TRANSVERSE DIMENSION OF SAID NUT BODY, SAID RECESS AND SAID CONVEX SURFACE BEING OF SUBSTANTIALLY SEGMENTALLY SPHERICAL SHAPE AND SIX CIRCUMFERENTIALLY SPACED RESILIENT FINGERS ON SAID BEARING MEMBER PROJECTING RADIALLY INWARDLY AT THE OTHER END OF SAID CAVITY AND NONROTATABLY CONFINING SAID NUT BODY IN SAID CAVITY, SAID FINGERS HAVING CAM SURFACES ON THE OUTER SIDES THEREOF TAPERING INWARDLY TOWARD SAID CAVITY, SAID CAM SURFACES BEING ENGAGEABLE BY SAID NUT BODY TO CAUSE SAID FINGERS TO DEFLECT RADIALLY OUTWARDLY OUT OF ALIGNMENT WITH SAID CAVITY AND PERMIT SAID NUT BODY TO BE PRESSED INTO SAID CAVITY.