Comparison : Item # Z450110, Phillips Pan Head Machine Screws, National Coarse, Zinc Plated Steel (5-40)
Item # Z450115, Phillips Pan Head Machine Screws, National Coarse, Zinc Plated Steel (5-40)
Item # Z450120, Phillips Pan Head Machine Screws, National Coarse, Zinc Plated Steel (5-40)
Item # Z450125, Phillips Pan Head Machine Screws, National Coarse, Zinc Plated Steel (5-40)
Item # Z450130, Phillips Pan Head Machine Screws, National Coarse, Zinc Plated Steel (5-40)