Our range of A4 316 Stainless Steel Machine Screws offers the ultimate solution for demanding environments requiring superior corrosion resistance. Often referred to as marine-grade stainless steel, the 316 grade contains molybdenum, providing enhanced protection against chlorides and salt spray compared to standard A2 stainless. This makes these fasteners ideal for coastal applications, boat building, and chemical processing plants where longevity is non-negotiable.
Available in both Pozi and Slotted head styles, these machine screws are designed for use with pre-tapped holes or used in conjunction with nuts and washers to create a secure, flush, or decorative finish. The Pozi drive offers improved grip and reduced cam-out for high-torque applications, while the classic Slotted drive provides a traditional look and ease of use with standard tools.
At Duchy Fasteners, we pride ourselves on supplying high-quality fixings at competitive trade prices. Whether you are working on a large-scale industrial project or a specialized marine repair, our A4 316 machine screws ensure long-lasting durability and structural integrity. Benefit from our extensive UK stock and fast delivery options to keep your projects on schedule. Shop our full range of sizes and thread pitches online today for reliable, professional-grade hardware.