Sulfur: Maximum 0

3/8 x 3 1/2 Mushroom Spike Zinc Plated (25)

9/16-12 x 5 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (25)

1/2-13 x 1 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (300)

7/8-9 x 4 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (40) Phillips Pan-Head Marine Screws 316 Stainless Steel Sulfur: Maximum 07 8 9 x 4 1 2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (40) . 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