#10 x 1" Simpson Strong-Tie Phillips Flat Head Marine Screws - 316 Stainless Steel, Pkg. 1,000 Underlayment & Subfloor Screws Floor Joists & Ceiling Framing:

Floor Joists & Ceiling Framing: Ensures secure joist connections in residential and commercial construction

For mislocated truss anchors which are greater than 1/8" but less than 1 1/2" from the face of the truss

and pressure-treated wood applications

Application: Ideal for decks

#10 x 1" Simpson Strong-Tie Phillips Flat Head Marine Screws - 316 Stainless Steel, Pkg. 1,000 Underlayment & Subfloor Screws Floor Joists & Ceiling Framing:Simpson Strong Tie Marine Flat Head Screws are designed to fasten securely into fiberglass, plywood, and other wood substitute materials. Built to perform in harsh marine and chemically caustic environments with maximum corrosion resistance, these screws deliver strength and reliability where other fasteners fail. The flat head design ensures a smooth, flush surface finish, making them ideal for demanding applications above or below the waterline.