Simpson Strong-Tie Marine Screws are engineered for the most demanding environments – offering long-term strength and corrosion resistance in coastal, saltwater, and chemically treated wood applications. Made from 316 stainless steel, these flat-head screws are built to withstand marine exposure without rusting, staining, or failing over time.
Designed with a sharp Type 17 point for fast starts and a deep thread profile for superior holding power, these screws drive cleanly and securely into wood while resisting withdrawal forces caused by moisture movement and structural load. The flat head provides a flush, professional finish—perfect for decks, docks, boat structures, and seaside construction.
Key Features:
- 316 Stainless Steel Construction – Provides unmatched corrosion resistance in saltwater, coastal, and high-moisture environments.
- Flat Head Design – Sits flush for a clean, professional appearance in decking, trim, or structural framing.
- Type 17 Point – Sharp tip enables quick starts and reduced splitting without pre-drilling in most wood types.
- Deep Thread Geometry – Enhances grip and pull-out strength in treated lumber and hardwoods.
- Code-Recognized Performance – Ideal for use in structural or exterior applications where durability and strength are critical.
Applications:
- Docks and marinas
- Boardwalks and piers
- Coastal decks and framing
- Boat lifts and water-access structures
- Saltwater-adjacent construction
- Pressure-treated lumber installations in wet environments
Installation:
- Use with a compatible bit (T25 star or square drive, depending on variant).
- Drive screws flush with the surface for optimal performance and appearance.
- Pre-drilling typically not required due to Type 17 point, though may be helpful in dense hardwoods.
- Avoid mixing stainless steel with carbon steel hardware to prevent galvanic corrosion.
- Follow all Simpson Strong-Tie installation guidelines and local building codes for structural or marine installations.
California Residents: WARNING
