1-8 x 2 1/2 Socket Cap Screw Alloy

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5/8-18 x 6 Grade 8 Hex Cap Screw Yellow Zinc Plated

8-18 x 3 Phillips Drywall Self Drill Screw Zinc Plated (2000)

3/16 x 4 Mushroom Spike Zinc Plated (100)

6-32 x 3/8 Phillips Flat 82 Undercut Machine Screw Black Zinc Plated (10,000) 3/4-10 Hex Cap Screws 18-8 Stainless Steel 1-8 x 2 1/2 Socket6 32 x 3 8 Phillips Flat 82 Undercut Machine Screw Black Zinc Plated (10,000) . Black Zinc is an acidic, low temperature powdered product developed to impart a black conversion coating of zinc die casting, galvanized stock and electroplated zinc parts. The black coating serves as a base for organic coatings (lacquers, paints, waxes and oils) and also provides an esthetic appeal.