Simpson CSD25400 1/4" X 4" Countersunk Head Split-Drive Anchor - Zinc, Pkg 100 Collated Roofing Nails The Simpson PROSDDM25K auto-feed Decking/Drywall

The Simpson PROSDDM25K auto-feed Decking/Drywall Combo System makes quick work of installing decks/docks

it’s built to resist rust and corrosion

Metal roofing

Available in multiple finish options to suit interior and exterior conditions

they are often used for wood and other materials

Simpson CSD25400 1/4" X 4" Countersunk Head Split-Drive Anchor - Zinc, Pkg 100 Collated Roofing Nails The Simpson PROSDDM25K auto-feed Decking/DrywallThe Split Drive anchor is a one piece expansion anchor that can be installed in concrete, grout filled block and stone. As the anchor is driven in, the split type expansion mechanism on the working end compresses and exerts force against the walls of the hole. The Countersunk head allows for a smooth surface when attaching wood or light gauge steel to concrete and grout filled block surfaces. Installation: For Common Rafters: Drill a hole in base