Thickness:

3/8-16 x 3 Hex Sleeve Anchor Zinc Plated (50)

which means you can place them close to each other without having to worry about compromising structural integrity

2 1/4-8 A194 2H Heavy Hex Nut Plain

1-14 x 3 1/4 Grade 8 Hex Cap Screw Yellow Zinc Plated

1/4-28 x 3 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (100) Tie Wire Split Drive Anchors Zinc Plated Thickness:1 4 28 x 3 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (100) . 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