1/4 x 4 Flat Split Drive Anchor Zinc Plated (100)

1/4-28 L9 Hex Nut Alloy Cadmium Yellow and Wax Coated Domestic USA (100)

18-8 stainless steel offers good corrosion resistance and machines easily but will over time stain in coastal environments

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

1 1/4-12 x 9 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (10)

1/4-20 x 4 Grade 8 Hex Cap Screw Plain Domestic USA (450) Square Flat Particle Board Screws Plain and Lubed 1/4 x 4 Flat Split1 4 20 x 4 Grade 8 Hex Cap Screw Plain Domestic USA (450). 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