Product features of GoVets | Qty 3 | Brighton-Best 1/4-20 x 2-1/2x22 Machine Screw - Phillips Round Head - Steel - Zinc - ft - Pkg of 100 - BBI 5886 QV_G8X8FAWG:
Machine Screws are designed to go through a hole or nut that is pre-tapped to form a mating thread for that screw. Round head screws are sometimes perferred over a pan head for its smooth surface and appearance.