Comparison : Item # Z710020, Socket Set Screws, National Coarse (2-56)
Item # Z710025, Socket Set Screws, National Coarse (2-56)
Item # Z710030, Socket Set Screws, National Coarse (2-56)
Item # Z710035, Socket Set Screws, National Coarse (2-56)
Item # Z710040, Socket Set Screws, National Coarse (2-56)