Floating thin wall insert

Claim 1

IN AN INSERT ADAPTED TO BE INSTALLED IN A BORE OF A WORKPIECE, THE COMBINATION OF: A FIRST CYLINDRICAL BODY HAVING EXTERNAL THREADS ON A PORTION THEREOF, SAID BODY BEING PROVIDED WITH AN INTERNAL ANNULAR SHOULDER, SAID BODY BEING FURTHER PROVIDED WITH INWARDLY EXTENDING BODY INDENTATIONS IN SPACED RELATIONSHIP WITH SAID ANNULAR SHOULDER SO AS TO FORM A RETAINING CAVITY THEREWITH; AN INTEGRAL LOCKING HEAD PROVIDED BY SAID FIRST BODY, SAID LOCKING HEAD BEING ADAPTED TO BE OUTWARDLY RADIALLY DEFORMED SO AS TO BECOME EMBEDDED IN THE BORE OF A WORKPIECE, THEREBY PREVENTING ROTATIONAL MOVEMENT THEREOF RELATIVE TO SAID WORKPIECE; A SECOND CYLINDRICAL BODY DISPOSED WITHIN SAID FIRST BODY AND LATERALLY SPACED THEREFROM, SAID SECOND BODY BEING PROVIDED WITH A THREADED BORE AND A LOAD BEARING ANNULAR RADIAL FLANGE PROJECTING FROM SAID BODY, A PORTION OF SAID ANNULAR RADIAL FLANGE BEING LOOSELY ACCOMMODATED IN SAID RETAINING CAVITY THEREBY PERMITTING LIMITED LONGITUDINAL MOVEMENT OF SAID SECOND BODY RELATIVE TO SAID FIRST BODY, SAID FLANGE PROVIDED WITH A RECESS, SAID INWARDLY EXTENDING INDENTATIONS PROVIDED BY SAID FIRST BODY BEING LOOSELY ACCOMMODATED IN SAID RECESS SO THAT SAID SECOND BODY IS PERMITTED LIMITED LATERAL MOVEMENT RELATIVE TO SAID FIRST BODY.