3/8" x 4" Conquest Large Diameter Concrete Screws - Galvanized, Pkg 50 Plywood Sheathing Clips this Simpson Strong-Tie F12C200FDB Self-Drilling

this Simpson Strong-Tie F12C200FDB Self-Drilling Flat Head Screw With Wings delivers the performance you expect

These nails come in angled strips and are compatible with most 15 gauge angled finish nailers

Interior and exterior wood-to-steel fastening jobs

Verify: Perform a final inspection of the connection before loading

Follow substrate thickness and spacing guidelines as recommended

3/8" x 4" Conquest Large Diameter Concrete Screws - Galvanized, Pkg 50 Plywood Sheathing Clips this Simpson Strong-Tie F12C200FDB Self-DrillingConquest Large Diameter Concrete Screws Galvanized are engineered for serious holding power in concrete, block, and brick. Whether you're anchoring sill plates, machinery, racking systems, or structural framing, these heavy duty fasteners are built to handle high load applications with confidence. Designed with a robust thread profile, they cut into concrete with minimal torque while delivering high pullout resistance. Made from hardened steel with a