Comparison : Item # Z420470, Slotted Flat Head Machine Screws, National Coarse, Zinc Plated Steel (1/4"-20)
Item # Z420475, Slotted Flat Head Machine Screws, National Coarse, Zinc Plated Steel (1/4"-20)
Item # Z420480, Slotted Flat Head Machine Screws, National Coarse, Zinc Plated Steel (1/4"-20)
Item # Z420485, Slotted Flat Head Machine Screws, National Coarse, Zinc Plated Steel (1/4"-20)
Item # Z420490, Slotted Flat Head Machine Screws, National Coarse, Zinc Plated Steel (1/4"-20)