Comparison : Item # Z400680, Slotted Round Head Machine Screws, National Coarse, Zinc Plated Steel (3/8"-16)
Item # Z400685, Slotted Round Head Machine Screws, National Coarse, Zinc Plated Steel (3/8"-16)
Item # Z400690, Slotted Round Head Machine Screws, National Coarse, Zinc Plated Steel (3/8"-16)
Item # Z400695, Slotted Round Head Machine Screws, National Coarse, Zinc Plated Steel (3/8"-16)
Item # Z400700, Slotted Round Head Machine Screws, National Coarse, Zinc Plated Steel (3/8"-16)