Simpson Strong-Tie provides a broad range of fasteners for boat building and marine trade applications. The Marine Screw is designed to fasten securely in fiberglass, plywood and wood-substitute materials for applications that require the ultimate in corrosion protection. This fastener is ideal for applying trim, rub rail and molding to fiberglass boat hulls. These stainless-steel marine screws also come in a flat head. Marine Screw, Pan Head — #8 x 1-1/4 in. #2 Phillips Drive, Type 316 (15-Qty) (Pack of 3240).