7 x 1-5/8 in. Self-Drilling Wood, 316 SS, Trim Head, Square - 5 Lb.

7 x 1-5/8 in. Self-Drilling Wood Screws, 316 Stainless Steel, Trim Head, Square Drive - 5 Lb.

Built for demanding exterior applications, these 7 x 1-5/8 in. self-drilling wood screws combine corrosion-resistant Type 316 stainless steel with a low-profile trim head and square drive. Type 316 stainless steel is an excellent choice for construction exposed to salt spray, moisture, pool environments, and other harsh conditions where corrosion resistance is important.

The trim-style head has a smaller, less noticeable profile than a standard wood screw head, making these screws especially useful for decking and other applications where a clean finished appearance matters. The Type-17 self-drilling point helps the screw start easily and penetrate wood efficiently, while coarse threads extending over approximately two-thirds of the shank help draw decking and other materials tightly against the framing.

Designed for Coastal and Exterior Applications

Passivated 316 stainless steel provides excellent resistance to corrosion. Its nickel content and addition of molybdenum give it enhanced corrosion resistance compared with many other stainless steel grades, making it well suited for seaside, poolside, and other moisture-prone environments. For projects exposed to salt air or salt spray, these screws provide a durable fastening option with a clean, low-profile appearance.

Features and Benefits

• Type 316 stainless steel: Excellent corrosion resistance for seaside, poolside, and other harsh exterior applications.
• 7 x 1-5/8 in. size: Well suited for securing decking and other wood materials to framing.
• Trim-style head: Smaller head profile creates a less noticeable appearance on the finished surface.
• Square drive: Provides positive driver engagement for controlled installation.
• Type-17 self-drilling point: Helps the screw start quickly and penetrate wood efficiently.
• Coarse threads: Threads cover approximately two-thirds of the shank to help pull materials tightly against the framing.
• 5 lb. package: Convenient bulk quantity for larger decking, woodworking, and exterior construction projects.

Installation Considerations

Although 316 stainless steel offers excellent corrosion resistance, it is generally more susceptible to breakage than hardened steel fasteners. Use care during installation and avoid excessive driving torque. The trim head has a non-standard head diameter of approximately 0.230 in., so controlled installation is particularly important.

Predrilling is recommended near board ends to help prevent splitting.

Ideal Applications

• Wood decking installation
• Coastal and seaside construction
• Poolside projects
• Exterior woodworking
• Projects exposed to moisture and salt spray
• Deck boards and other wood-to-framing applications

For exterior fastening where corrosion resistance and a discreet finished appearance are important, these 7 x 1-5/8 in. 316 stainless steel self-drilling wood screws provide a practical combination of durability, installation performance, and low-profile styling.