1. THE METHOD OF FORMING A THREADED ELEMENT COMPRISING STARTIFN WITH AN ELONGATED PIECE OF STOCK HAVING A PREDETERMINED NON-CIRCULAR EXTERNAL CROSS SECTION THROUGHOUT AN EXTENDED LENGTH THEROF, SAID CROSS SECTION BEING SUCH THAT THE NON-CIRCULAR STOCK PRESENTS A SERIES OF CIRCULARLY SUCCESSIVE SIDES EXTENDING ALONG THE LENGTH OF THE STOCK AND FORMING RADIALLY OUTWARDLY PROJECTING PEAKS AT THE JUNCTURES OF SAID SIDES ALSO EXTENDING ALONG THE LENGTH OF THE STOCK, FORMING EXTERNAL THREADS ON SAID NON-CIRCULAR STOCK WITH THE THREADS BEING TRANCATED PROGRESSIVELY BY SAID SIEDS SO THAT SAID SIDES FROM OUTER SURFACES ON THE THREADS WHICH, AS A PARTICULAR THREAD EXTENDS CIRCULARLY FROM ONE PEAK TO THE NEXT, FIRST DECREASE IN RADIUS TO A PREDETERMINED RECESSED PORTION AND THEN INCREASE IN RADIUS TOWARD THE NEXT PEAK, INDIVIDUAL ONES OF SAID RECESSED PORITONS OF SAID OUTER SURFACES BEING RECESSED RADIALLY INWARDLY BEYOND A PLANE WHICH IS DRAWN TO JUST TOUCH THE TWO ADJACENT PEAKS, HOLDING SAID STOCK, AFTER FORMING SAID EXTERNAL THREADS, BY GRIPING THE STOCK AT ESSENTIALLY THE RADIALLY INNERMOST PORTIONS OF CERTAIN OF SAID RECESSED PORTIONS BUT NOT AT SAID PEAKS, INTERNALLY THREADING SAID STOCK WHILE THUS HELD, AND AT SOME TIME DURING SAID METHOD CUTTING OFF SUCCESSIVE PORTIONS OF SAID NON-CIRCULAR STOCK TO FORM A SERIES OF THREADED ELEMENTS FROM SUCCESSIVE PORITONS THEREOF.