1 piece construction with a 1/4 inch hex shank

our zinc-plated mushroom Spike® anchors included

5/16-24 x 1 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (1000)

1-8 x 7 Hex Cap Screw SS 316 (A4)

1/2 x 14 Hex Lag Screw Hot Dipped Galvanized

7/8-14 x 5 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (15) Slotted Hex Concrete Screws 1 piece construction with a7 8 14 x 5 1 2 Grade 8 Hex Cap Screw Plain Domestic USA (15). 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