Have this Simpson Strong-Tie ZMAX Face-Mount Joist Hanger for 2 x 4 delivered onsite. Patented double-shear nailing design provides greater strength with fewer nails. Speed prongs for fast and easy installation. Angled joist nailing easier in tight spaces. Do not bend or remove tabs. Nominal joist size: 2×4. Made from 18-Gauge steel. ZMAX galvanization offers extra corrosion resistance for exterior and treated-wood applications. Install with 10d common nails or #9 x 2-1/2 in. Strong-Drive SD screws.