SDWH DB .19x4in Flag

Engineered for strength and reliability, the Strong-Drive® SDWH™ timber-hex screw from Simpson Strong-Tie features a large 0.650-inch washer head, ensuring maximum bearing area for secure fastening. Its innovative SawTooth® point design allows for quick starts and minimizes installation torque, eliminating the need for predrilling in most applications, which can significantly speed up your project timeline. The double-barrier coating provides excellent corrosion resistance comparable to hot-dip galvanization, making these screws suitable for a variety of non-marine environments. With a 5/16-inch hex drive and bold thread design, this screw offers superior holding power, while under-head nibs enhance control during installation, ensuring that the head seats perfectly every time.