9/16-12 x 4 1/2 Socket Cap Screw Alloy

1 x 6 Reduced Shank Drill Bit (1/2 Shank)

2 1/2" length for 2 x 4 wood header

9/16-12 x 1 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (25)

9/16-12 x 2 3/4 Grade 8 Hex Cap Screw Plain Domestic USA (150) 1/2 Hex Lag Screws Zinc Plated 9/16-12 x 4 1/2 Socket9 16 12 x 2 3 4 Grade 8 Hex Cap Screw Plain Domestic USA (150). 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