M3 x 4mm Slotted Set Screws Cup Point DIN 438 A1 Stainless Steel

M3 x4mm Slotted Grub Screw with Cup Point A1 Stainless Steel (DIN 438 / ISO 7436) | Vital Parts - SS438M3-4-A1

Slotted Grub Screws with Cup Points are precision-engineered fasteners designed for medium to heavy-duty applications. Manufactured to DIN 438 / ISO 7436 standards, this screw features a 0.5mm pitch and a concave cup point that creates a secure hold on rounded objects such as shafts, pipes and other cylindrical components. The headless design allows them to sit flush within threaded holes, ensuring a clean and seamless finish. Crafted from A1 stainless steel, these screws offer superior resistance to corrosion, wear and high temperatures, making them a dependable choice for challenging environments, including marine, industrial and outdoor applications.

What is a Slotted Grub Screw?

Slotted grub screws, also referred to as cup-point set screws, are versatile, headless fasteners equipped with a slotted drive for use with flat-head screwdrivers. The cup point design provides a ring-like dentation for superior grip on rounded surfaces, ensuring components remain securely fastened under vibration or dynamic load. These screws are widely used in assemblies where aesthetics, flush mounting and secure fastening are essential. If you’d like to learn more about grub screws and explore the table to determine which option is best suited for your project click here,

Key Features:

• High-Strength Material: Made from A1 stainless steel, providing excellent corrosion resistance, durability and suitability for use in harsh or marine environments.
• Cup Point Design: The concave end grips rounded objects firmly without damaging the surface, ensuring secure fastening and maintaining component integrity.
• Slotted Drive: Easy to install and adjust using standard flat-head screwdrivers, offering convenience and compatibility.
• Standards Compliance: Manufactured to DIN 438 / ISO 7436 specifications, ensuring precision, reliability and compatibility with global standards.
• Flush Fit: The headless design sits flush with the surface for a clean, professional finish, suitable for compact or visible installations.

Applications:

Slotted Grub Screws with Cup Points are a versatile fastening solution, commonly used in:

• Machinery and Automation: Ideal for securing shafts, pulleys and rotating components, providing a strong hold under vibration.
• Automotive Engineering: Used in vehicles to fasten components such as gear shafts and linkages.
• Electronics and Precision Instruments: Ensures precise fastening of delicate components, avoiding damage or misalignment.
• Marine and Outdoor Applications: A1 stainless steel construction resists corrosion from exposure to water and humidity, making them ideal for marine vessels, docks and outdoor equipment.

Benefits:

• Long-Lasting Performance: A1 stainless steel ensures durability and resistance to rust, even in demanding conditions.
• Flexible Sizing: Available in a wide range of metric sizes, from M2.5 to M12, to meet the needs of various projects and industries.
• Precision Fit: Designed to fit tightly into threaded holes, providing secure fastening without the need for additional nuts.
• Professional Appearance: Flush, headless design ensures a sleek, seamless look for aesthetic installations.

Whether you're working on industrial machinery, automotive systems, or precision instruments, the M3 x4mm Slotted Grub Screw with Cup Point is a versatile and reliable fastener. Add these screws to your toolkit for secure and corrosion-resistant fastening in any application.