nylon will begin to deteriorate at temperatures from 150

1-8 x 4 1/2 Socket Cap Screw Alloy

1 1/8-12 x 3 Socket Cap Screw Alloy

1-8 x 12 Grade 5 Hex Cap Screw Zinc Plated

175 inches

8-32 x 1/4 Phillips Flat 82 Undercut Machine Screw Black Zinc Plated (10,000) 3/4-10 Socket Cap Screws 18-8 Stainless Steel nylon will begin to deteriorate8 32 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.