Slotted Countersunk A4 Stainless Steel Screws | Duchy Fasteners

These A4 316 stainless steel slotted countersunk machine screws are engineered for reliable performance in demanding environments. Manufactured to DIN 963 specifications, they offer precise threading and a clean, flush finish once installed, making them ideal for applications where both strength and appearance matter.

Made from premium 316 stainless steel, these fasteners provide outstanding corrosion resistance, even in harsh or saltwater conditions. This makes them a trusted choice for marine, offshore, industrial, and construction use, as well as any environment exposed to moisture, chemicals, or outdoor weathering.

The countersunk head design allows the screw to sit flush with the surface, delivering a smooth, snag-free finish that is perfect for metalwork, engineering projects, joinery, and structural assemblies. The slotted drive offers simple installation and removal using standard hand tools, supporting quick maintenance and adjustments on site or in the workshop.

Key features include:

High-quality A4 316 stainless steel for superior corrosion resistance
Manufactured to DIN 963 for consistent dimensions and reliable fit
Slotted countersunk head for a flush, professional-looking finish
Suitable for marine, industrial, structural, and construction applications
Durable design for secure, long-lasting connections

Whether you are assembling equipment, fabricating metal structures, working on marine installations, or carrying out general engineering and maintenance, these stainless steel machine screws provide the strength, durability, and resistance you need for a secure and long-term fixing solution.