This combination of features makes the 2-4 1/2 Grade 2 finished hex nut zinc plated an excellent choice for reliable fastening needs

2-4 1/2 x 16 Socket Cap Screw Alloy

3/4-10 x 4 3/4 Socket Cap Screw Alloy

Finished Hex Nuts in 18-8 stainless steel are for use with stainless steel bolts or screws with a specified minimum tensile strength equal or less than the specified proof stress of the mating nut

3/4-10 x 2 1/2 Hex Cap Screw SS 316 (A4)

1/4-20 x 3/8 Phillips Flat 82 Undercut Machine Screw Black Zinc Plated (6,000) Finished Hex Nuts 316 Stainless Steel This combination of features makes1 4 20 x 3 8 Phillips Flat 82 Undercut Machine Screw Black Zinc Plated (6,000) . 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.