Simpson Strong-Tie #14 x 1" Self-Drilling E Metal Screw, Hex-Washer Head - Clear Zinc, Qty. 100 Concrete Repair & Crack Injection 5-inch diameter lally columns and

5-inch diameter lally columns and 5

Select a screw variant that ensures full penetration into the steel backing with full thread engagement

making it ideal for low foundation wall applications

If you have a nominal post measuring 3-1/2x3-1/2" you will need an ABW44Z Post base

Secure with a compatible 18-8 stainless steel nut and washer for best performance

Simpson Strong-Tie #14 x 1" Self-Drilling E Metal Screw, Hex-Washer Head - Clear Zinc, Qty. 100 Concrete Repair & Crack Injection 5-inch diameter lally columns andThe Simpson Strong Tie Strong Drive E1B1414R100 Self Drilling E Metal Screw is engineered to deliver high performance in light gauge steel connections without the need for predrilling. Designed with precision and efficiency in mind, this screw simplifies steel framing work by providing fast starts, consistent performance, and strong holding power. Ideal for interior framing and other light steel construction tasks, these screws feature a hex washer