Comparison : Item # Z450155, Phillips Pan Head Machine Screws, National Coarse, Zinc Plated Steel (6-32)
Item # Z450160, Phillips Pan Head Machine Screws, National Coarse, Zinc Plated Steel (6-32)
Item # Z450165, Phillips Pan Head Machine Screws, National Coarse, Zinc Plated Steel (6-32)
Item # Z450170, Phillips Pan Head Machine Screws, National Coarse, Zinc Plated Steel (6-32)
Item # Z450175, Phillips Pan Head Machine Screws, National Coarse, Zinc Plated Steel (6-32)