4-40 x 1/4 Phillips Flat 82 Undercut Machine Screw Black Zinc Plated (10,000) 7/8-14 Grade 5 Hex Cap Screws Zinc Plated 1 7/32 x 6 Reduced

1 7/32 x 6 Reduced Shank Drill Bit (1/2 Shank)

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4-40 x 1/4 Phillips Flat 82 Undercut Machine Screw Black Zinc Plated (10,000) 7/8-14 Grade 5 Hex Cap Screws Zinc Plated 1 7/32 x 6 Reduced4 40 x 1 4 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.