The Taurus PT series frames manufactured during and after 1997 use 3 grip screws of larger diameter that thread directly into the frame without the use of frame bushings. If you wish to use our Beretta / Taurus screws on these models, you will need to purchase a replacement set of Beretta frame bushings. The 4th grip screw does use a frame bushing and can be replaced directly with one of our screws.