Comparison : Item # Z430580, Phillips Flat Head Machine Screws, National Coarse, Zinc Plated Steel (3/8"-16)
Item # Z430585, Phillips Flat Head Machine Screws, National Coarse, Zinc Plated Steel (3/8"-16)
Item # Z430590, Phillips Flat Head Machine Screws, National Coarse, Zinc Plated Steel (3/8"-16)
Item # Z430595, Phillips Flat Head Machine Screws, National Coarse, Zinc Plated Steel (3/8"-16)
Item # Z430600, Phillips Flat Head Machine Screws, National Coarse, Zinc Plated Steel (3/8"-16)