4 in. x .220 in. Strong-Drive® SDWS T40 Washer-Head Coarse SawTooth® Point Structural Double-Barrier Coated Wood Screws, Tan (50 Pack) | SIM-SDWS22400DB-R50

Simpson Strong-Ties Strong-Drive SDWS T40 Washer-Head SawTooth Point Structural Double-Barrier Coated Screws are coated with a proprietary double-barrier finish for enhanced corrosion resistance, making them ideal for treated lumber and exterior environments. The T40 6-lobe drive ensures maximum driver engagement and reduces cam-out, helping maintain installation efficiency and bit life. These screws meet rigorous code requirements and are ICC-ES ESR-3046 approved, offering professional-grade performance for contractors and builders seeking long-lasting, code-compliant fastening solutions.

• The large washer head increases bearing area and pull-through resistance
• The SawTooth® point enables quick starts without predrilling in most wood types
• The double-barrier coating provides corrosion protection for treated and exterior wood
• The T40 6-lobe drive enhances torque transfer and reduces stripping
• The .220 in. diameter shank delivers exceptional strength in structural assemblies