7/8-14 x 3 Hex Cap Screw SS 18-8 (A2)

On diameters over 1 inch to 1 1/2 hardness will range from HRC 19-30

#34 x 6 High Speed Aircraft Bit Cobalt

1/2-20 x 2 1/4 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (50)

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

1/4-20 x 4 Grade 8 Hex Cap Screw Plain Domestic USA (50) 5/8-11 Socket Cap Screws 18-8 Stainless Steel 7/8-14 x 3 Hex Cap1 4 20 x 4 Grade 8 Hex Cap Screw Plain Domestic USA (50). Grade 8 Hex Cap Screws are manufactured in the USA from medium carbon alloy steel. In diameters 1 4 to 1 1 2 inches our Grade 8 material meets or exceeds SAE J429 Grade 8 specifications. Diameters over 1 1 2 inches meet or exceed ASTM A354 Grade BD. All material is manufactured with rolled threads. Yellow zinc plated bolting will meet or exceed ASTM F1941. Typical hardness on diameters 1 4 to 2