9 x 4 Simpson Trim-Head Wood Decking Screws - Square Drive 305 SS - 5 lbs Pack (305)

The high strength

10 x 2 1/2 Simpson Bugle-Head Wood Decking Screws - Square Drive T17 316 SS - 1 lbs Pack (82)

1 3/4-5 x 6 Socket Cap Screw Alloy

10-32 x 3/8 Phillips Flat 82 Undercut Machine Screw Black Zinc Plated (10,000) 1-14 Socket Cap Screws Alloy 9 x 4 Simpson Trim-Head10 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.