Simpson 1/2 inch Dome Washer with 1 inch Pin GW100-R100 Dewalt The dome washer measures 1/2"

The dome washer measures 1/2" in size

The bugle head geometry allows the screw to drive flush with the surface of wood

Driver Size: 5/16" hex

The ECC84 features increased uplift load capacity

providing the code-required 1-inch standoff that helps protect structural posts from ground moisture and concrete contact

Simpson 1/2 inch Dome Washer with 1 inch Pin GW100-R100 Dewalt The dome washer measures 1/2"The Simpson Strong Tie GW100 R100 is a gas actuated 1 2" dome washer pin engineered to securely fasten building components to concrete. Combining a 1 2" dome washer with a 1" pin, this fastener is purpose built for high volume applications and is compatible with common powder actuated tools making it equally effective when fastening into harder substrates such as structural steel or extra hard concrete. Finished in zinc plated carbon steel, the GW100