#10 x 1-1/2" Simpson Strong-Tie Phillips Flat Head Marine Screws - 316 Stainless Steel, Pkg. 100 23 Gauge Collated Headless Micropins and preservative-treated lumber applications

and preservative-treated lumber applications

and the bolted THGBH hangers offer higher design loads

When the resin encounters water as it is injected into the crack

fast installation

#10 x 1-1/2" Simpson Strong-Tie Phillips Flat Head Marine Screws - 316 Stainless Steel, Pkg. 100 23 Gauge Collated Headless Micropins and preservative-treated lumber applicationsSimpson 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.