IN A COMBINATION OF NAILS AND NAIL SHOE ADAPTERS, A MOLDED PLASTIC ADAPTER (1) PROVIDES A BYAN INNER RING ATTACHED TO A THREADED AXIAL HOLE (5). A COAXIAL OUTER RING (10) IS RADIALLY SEPARATED FROM THE INNER RING TO LEAVE A RING SPACE (11). A PLASTIC NAIL MOLDING (19) INCLUDES AN EXTERNALLY THREADED SLEEVE (21) THAT CAN BE THREADED IN THE ADAPTER HOLE AND A COAXIAL RING (26) THAT IS RADIALLY SEPARATED INTO THE OUTSIDE OF THE SLEEVE TO SLIDE OVER THE ANNUAL 9) AND ENTER THE NULL SPACE (11) WHEN THE ADAPTER AND THE NAIL ARE MOUNTED. FROM THE RING (26) CYLINDRICAL REINFORCEMENTS FORMED BY FOUR PARTS (29) ARE PROJECTED AXIALALLY IN SPACE (11) AND PROVIDE FOUR BLOCK HIGHLIGHTS (28) THAT ARE EXTENDED AXIALALLY BY PROJECTS RANGEED BY 90 (DEGREES) EXTERIOR FROM THE RING. FOUR CORRESPONDING FORMATIONS ARE PROVIDED ON THE INNER SURFACE OF THE OUTER RING (10) OF THE ADAPTER (15) TO RECEIVE THE HIGHLIGHTS (28). EACH CAVITY IS SURROUNDED ON ONE SIDE BY AN ENTRANCE RAMP (16) AND ON THE OTHER BY A STOP BLOCK (17). WHEN THE NAIL IS THREADED IN THE ADAPTER, THE PROJECTIONS GO THROUGH THE RAMPS ALTERNATIVELY, OFFERING INCREASED RESISTANCE TO THE TURN SUCCESSIVELY, UNTIL FINALLY, THE PROJECTIONS ENGAGE THE STOP BLOCKS (17) TO PREVENT THEM FROM TURNING.
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