5-40 Square Machine Screw Nut Zinc M3.5-0.6 The black phosphate coating provides

The black phosphate coating provides superior corrosion resistance

this screw meets Grade 2 specifications for reliability and performance

With a hexagonal head for easy tightening and a fully threaded design

durable fastener designed for a wide range of applications

This 7/8-9 x 3 1/2 hex cap screw is made of 18-8 stainless steel

5-40 Square Machine Screw Nut Zinc M3.5-0.6 The black phosphate coating provides5 40 Square Machine Screw Nut Zinc is a small, square shaped nut that is used to secure machine screws. It is made of zinc plated steel, which provides corrosion resistance and durability. The nut has a square hole in the center, which allows it to be easily tightened or loosened with a wrench. It is commonly used in a variety of applications, including furniture assembly, electronics, and machinery.