1 1/2-6 x 4 Socket Cap Screw Alloy

They are available in high strength

15/16 x 12 High Speed Long Boy (1/2" Shank)

5 x 65 Hex Cap Screw 8

#58 Heavy Duty Jobber Drill Bit

8-32 x 3/8 Phillips Flat 82 Undercut Machine Screw Black Zinc Plated (10,000) M24-3.0 Hex Cap Screws 8.8 DIN 931 Zinc Plated 1 1/2-6 x 4 Socket8 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.