Comparison : Item # Z400075, Slotted Round Head Machine Screws, National Coarse, Zinc Plated Steel (5-40)
Item # Z400080, Slotted Round Head Machine Screws, National Coarse, Zinc Plated Steel (5-40)
Item # Z400085, Slotted Round Head Machine Screws, National Coarse, Zinc Plated Steel (5-40)
Item # Z400090, Slotted Round Head Machine Screws, National Coarse, Zinc Plated Steel (5-40)