316 stainless steel has greater corrosion resistance than 18-8 as well as superior strength at high temperatures

7/16-20 x 1 3/4 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (50)

1-8 x 2 1/2 Hex Cap Screw SS 18-8 (A2)

9/16-12 x 2 1/4 Hex Cap Screw SS 316 (A4)

1/2-20 L9 Hex Collar Locknuts Cadmium Yellow & Wax Coated Domestic USA (50)

5/16-24 x 3/4 Grade 5 Hex Cap Screw Plain Domestic USA (1650) Phillips Flat Concrete Screws 316 stainless steel has greater5 16 24 x 3 4 Grade 5 Hex Cap Screw Plain Domestic USA (1650). Grade 5 Hex Cap Screws are manufactured in the USA from medium carbon steel. Our Grade 5 material meets or exceeds SAE J429 Grade 5 specifications. All products are manufactured with rolled threads. Typical hardness on diameters 1 4 to 1 inch is HRC 25 34. On diameters over 1 inch to 1 1 2 hardness will range from HRC 19 30. Tensile strength for diameters 1 4 to 1 inch is a minimum of