the expansion mechanism compresses and exerts force against the walls of the hole

in concrete

1-14 x 3 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (10)

5/8-11 x 6 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (25)

5/8 x 10 Simpson Titen HD® Washer-Head Style Heavy-Duty Screw Anchor Zinc Plated - Box (10) 1 3/8-6 A307A Hex Bolts Plain Steel the expansion mechanism compresses andSimpson Titen HD 5 8 x 10 washer head style heavy duty screw anchors provide superior performance and durability in the most demanding applications. Featuring zinc plating for corrosion protection and a large head style washer for maximum bearing and stability, these anchors are perfect for heavy duty applications. Box contains 10 anchors.