heat-treated alloy steel

Hardness for plain and zinc plated washers is HRC 38-45 and HRC 26-45 for hot-dip galvanized washers per ASTM F436

Socket Cap Screws in 18-8 (A2) Stainless Steel by Brighton Best

1/2 x 18 Hex Lag Screw Hot Dipped Galvanized

1/8 x 3 Powers Round Toggle Bolt Zinc Plated (50)

31/32 x 6 Reduced Shank Drill Bit (1/2 Shank) 3/4-10 Flat Socket Cap Screws Alloy heat-treated alloy steel31 32 x 6 Reduced Shank Drill Bit (1 2 Shank) . Expands the size range capacity of a 1 2 inch portable drill chuck. Common flute and overall length for minimal adjustment during tool changes. Precision ground for high degree of concentricity between shank and body diameter. Ideal for drilling in low and medium tensile strength materials.