Exterior wood screws used in fencing

230" head diameter

250" (229 mils

#52 Heavy Duty Drill Bit - Stubby Length

5/8-11 x 3 1/2 Hex Cap Screw SS 316 (A4)

4-40 x 1/4 Phillips Flat 82 Undercut Machine Screw Black Zinc Plated (10,000) 5/8-18 Hex Cap Screws 18-8 Stainless Steel Exterior wood screws used in4 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.