AISI 316 Self-Tapping Screws – Phillips Countersunk Head (DIN 7982)

These stainless self-tapping screws are a must-have for any marine repair or installation project. Engineered to cut their own threads as they are driven in, they allow for secure fastening in metal, plastic, or wood without the need for tapped holes or backside nuts. The AISI 316 marine-grade stainless construction ensures the screws won’t rust, seize, or stain your fittings, even with continuous exposure to saltwater and humidity. Their countersunk flat heads sink into the material for a flush finish – crucial on decks and railings where protruding screw heads could snag lines or bare feet. The Phillips crosshead drive is universally used and enables quick driving with common screwdrivers or power drills, providing good grip and minimizing cam-out.

Built to DIN 7982 (ISO 7050) standards, these screws feature sharp points and threads optimized for thin-gauge materials (like sheet metal, fiberglass panels, etc.), meaning they can pierce and thread into the material efficiently. They come in a broad range of diameters and lengths, covering almost any need – from tiny screws for securing wire clamps or nameplates to large robust screws for high-load attachments such as hinge installations, latch fittings, or other deck hardware. When you use these fasteners, you can trust that the joint will remain tight and secure; the screws are resistant to vibration loosening and will not corrode away, ensuring long-term reliability.

• Small Diameters (∅ 2.9–4.2 mm): Best for lightweight attachments – e.g., securing electrical clips, small hinges, instrument panels, or decorative trims to thin surfaces. Ideal for smaller boats (approx. 3–5 m) and delicate applications where over-sized screws aren’t necessary.
• Medium Diameters (∅ 4.8–5.5 mm): Great all-purpose sizes – used for mounting hardware like rod holders, cabinet hinges, door latches, or electronics brackets. Provide solid hold for medium-sized boats (5–8 m) and general outfitting tasks.
• Largest Diameter (∅ 6.3 mm): Recommended for heavy-duty use – fastening cleats, rail bases, engine components, or other high-stress points where maximum strength is needed. Excellent for larger vessels and areas subject to vibration or impact.
• Pro Tip: While these are self-tapping, for very hard materials (e.g., thick stainless plates or dense fiberglass) it’s wise to drill a small pilot hole to guide the screw and ensure even better results.
• Durability: Thanks to the AISI 316 composition, the screws remain shiny and rust-free – you won’t find rust streaks on your deck. Even after years in the weather, they retain their integrity, making them an ideal choice for any long-term marine application.