the swage process the swage tool presents an internal stop screw mechanism designed in close tolerance with the internal diameter 38 of the swage portion of the collar this diameter is bigger than the diameter of the locking shoulder 28 of the male fastener and fully protects this feature during the swaging process also this close tolerance of the internal stop screw mechanism with the swage diameter 38 helps the operator align the swage tool with the already threaded fastener the high standard of deviation of the load capability problem is also reduced since the majority of the load capacity is carried by the threads which are not influenced by any operator or installation errors on the prior art design the load capability of the fastener was controlled by the amount of swaging produced during installation the smaller the swaging diameter the higher the swage force resulting in higher load capability of the installed fastener because of that especially when the male fastener was exposed to high temperatures the user preferred to choose the smallest swage diameter possible below the recommended range in order to make up for the loss of load capability due to the softening of the fastener this practice can cause irreversible damage to the.