Comparison : Item # Z410435, Phillips Round Head, Machine Screws, National Coarse, Zinc Plated Steel (1/4"-20)
Item # Z410440, Phillips Round Head, Machine Screws, National Coarse, Zinc Plated Steel (1/4"-20)
Item # Z410445, Phillips Round Head, Machine Screws, National Coarse, Zinc Plated Steel (1/4"-20)
Item # Z410450, Phillips Round Head, Machine Screws, National Coarse, Zinc Plated Steel (1/4"-20)
Item # Z410455, Phillips Round Head, Machine Screws, National Coarse, Zinc Plated Steel (1/4"-20)