The patented outdoor accents hex-head washer and structural wood screw combination provides the decorative appearance of a bolted connection. Its design provides an easier and significantly faster installation time compared to through-bolting. The hex-head washer is code listed (IAPMO UES ER-192) and is designed to be used exclusively with the outdoor Accents structural wood screw to fasten Outdoor Accents connectors, including post bases, T and L straps, angles, gable plates and heavy joist hangers.