No water gets into your house

1/2-13 x 16 A307 Grade A Carriage Bolt HDG

1 1/4-7 Nylon Insert Locknut Zinc Plated

3/4 x 12 Hex Lag Screw Zinc Plated

there is no secondary tightening operation required which greatly reduces the overall cost of an anchor installation

1 3/16 x 6 Reduced Shank Drill Bit (1/2 Shank) M24-3.00 Hex Cap Screws DIN 933 18-8 Stainless Steel (A2) No water gets into your1 3 16 x 6 Reduced Shank Drill Bit (1 2 Shank) . Expands the size range capacity of a 1 2 inch portable drill chuck. Common flute and overall length for minimal adjustment during tool changes. Precision ground for high degree of concentricity between shank and body diameter. Ideal for drilling in low and medium tensile strength materials.