our zinc-plated mushroom Spike® anchors included

1960 series

9/16-18 x 1 1/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25)

1 1/4-7 x 8 A307A Hex Bolt Hot Dipped Galvanized

7/16-20 x 5 Grade 5 Hex Cap Screw Plain Domestic USA (25)

1 1/8-7 x 5 A307A Hex Bolt Plain Steel 18" Ship Augers our zinc-plated mushroom Spike® anchors1 1 8 7 x 5 A307A Hex Bolt Plain Steel. A307A Hex Bolts are manufactured from low carbon steel, typically 1015 1022. Our A307A bolting meets or exceeds ASTM A307 Grade A. Material is manufactured with rolled threads. Zinc plated material meets or exceeds ASTM F1941. Tensile strength will meet or exceed 60,000 psi.