Product Details

Our DIN 916 set screws are headless, fully threaded fasteners designed for compression. They function by being threaded into a hole in an outer object, with the point pressing firmly against an inner object (typically a shaft) to prevent it from moving.

• DIN 916 Standard with Cup Point: This screw conforms to the DIN 916 standard, which specifies a headless design with a hex socket drive and a cup point. The cup point is the most common and versatile set screw point. Its circular, concave tip is designed to bite into the shaft material, creating a strong grip that resists both rotational and axial forces. This biting action provides excellent holding power and resistance to loosening from vibration.
• 304 Stainless Steel (A2): The screw is manufactured from 304 (also known as A2) stainless steel. This material offers an excellent balance of strength, durability, and outstanding corrosion resistance. It is ideal for general-purpose applications, including outdoor use and environments with exposure to freshwater and humidity. The passivated surface provides a permanent, self-healing barrier against rust.
• Hex Socket Drive: The internal hexagonal drive (Allen drive) allows for high-torque installation using a standard hex key. This is essential for a headless screw, enabling it to be driven into a threaded hole until it is flush with or recessed below the surface, creating a safe, snag-free profile.

Product Parameters

The technical specifications for our DIN 916 304 Stainless Steel Cup Point Set Screws are detailed below to ensure a perfect fit for your application.

Product Features

Our stainless steel DIN 916 set screws are engineered to deliver superior performance and reliability.

• Exceptional Holding Power: The cup point’s sharp circular rim digs into the shaft’s surface, providing a powerful locking action that securely holds components in place, even under significant load and vibration.
• Superior Corrosion Resistance: Made from 304 stainless steel, these screws are naturally resistant to rust and corrosion, making them perfect for use in damp, wet, or outdoor environments without the need for protective coatings.
• Flush and Safe Installation: The headless design allows the screw to be installed flush with or below the surface of the component, resulting in a clean, compact assembly with no protruding parts to cause snags or injuries.
• High Vibration Resistance: The permanent indentation created by the cup point provides a strong mechanical lock that is highly resistant to loosening, which is critical for dynamic and rotating machinery.
• Adjustable and Reusable: While they provide a very secure grip, these set screws can be loosened, allowing for adjustment, repositioning, or removal of the secured component during maintenance or disassembly.

Product Applications

DIN 916 stainless steel cup point set screws are a fundamental component in countless mechanical and industrial applications. They are most commonly used in power transmission assemblies to secure pulleys, sprockets, and gears to motor shafts. In mechanical systems, they are used to fix shaft collars, lock bearings in position, and secure couplings. They are essential in tool and die manufacturing for holding parts within jigs and fixtures or acting as precision adjusters. In automation and robotics, they provide reliable fastening for sensors, actuators, and other critical components. Their corrosion resistance also makes them the ideal choice for marine equipment, food processing machinery, and any outdoor application where durability is key.