1/2-13 x 6 Hex Cap Screw SS 316 (A4) 3/4-16 Grade 5 Hex Cap Screws Zinc Plated Typical hardness on diameters 1/4

Typical hardness on diameters 1/4 to 2 1/2 inches is HRC 33-39

3/8-16 x 8 Grade 8 Hex Cap Screw Yellow Zinc Plated

3/4-16 x 6 Grade 8 Hex Cap Screw Yellow Zinc Plated

1-8 x 3 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated

Grade 8 Hex Cap Screws are manufactured from medium carbon alloy steel

1/2-13 x 6 Hex Cap Screw SS 316 (A4) 3/4-16 Grade 5 Hex Cap Screws Zinc Plated Typical hardness on diameters 1/41 2 13 x 6 Hex Cap Screw SS 316 (A4) . 316 series stainless steel differs from 18 8 by its molybdenum content (2 3%) and a higher nickel content (10 14%). 316 stainless steel has greater corrosion resistance than 18 8 as well as superior strength at high temperatures.