Clean round holes

#26 x 6 High Speed Aircraft Bit Cobalt

17/32 x 6 Reduced Shank Drill Bit Cobalt (1/2 Shank)

6 x 1 1/4 Simpson Bugle-Head Wood Decking Screws - 6-Lobe Drive 305 SS - 1 lbs Pack (243)

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

4-40 x 3/8 Phillips Flat 82 Undercut Machine Screw Black Zinc Plated (10,000) 1-8 Hex Cap Screws 316 Stainless Steel Clean round holes4 40 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.