Comparison : Item # Z410005, Phillips Round Head, Machine Screws, National Coarse, Zinc Plated Steel (2-56)
Item # Z410010, Phillips Round Head, Machine Screws, National Coarse, Zinc Plated Steel (2-56)
Item # Z410015, Phillips Round Head, Machine Screws, National Coarse, Zinc Plated Steel (2-56)
Item # Z410020, Phillips Round Head, Machine Screws, National Coarse, Zinc Plated Steel (2-56)