1/2 x 4 Mushroom Spike Zinc Plated (25)

3/8-24 x 3 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (50)

6 x 2 Phillips Bugle Fine Drywall Screws Phosphate Coated - Carton (3500)

and in two head styles

7/16-20 x 1 Grade 8 Hex Cap Screw Plain Domestic USA (650) M20-2.50 Socket Cap Screws 12.9 DIN 912 Zinc Plated 1/2 x 4 Mushroom Spike7 16 20 x 1 Grade 8 Hex Cap Screw Plain Domestic USA (650). 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