Product Details

Our DIN 916 set screws are designed for performance and reliability. They are headless, fully threaded fasteners that function by being driven into a threaded hole until the point exerts compressive force on an inner object, locking it in place.

• DIN 916 Standard with Cup Tip Design: These screws are manufactured in strict accordance with the DIN 916 standard. The defining feature is the cup tip (or cup point), a concave depression at the end of the screw. When tightened, the sharp circular rim of the cup bites into the surface of the shaft, creating a strong mechanical lock that offers excellent resistance to both rotational and axial slippage, especially under vibration.
• High-Quality Stainless Steel: We manufacture these set screws from premium stainless steel grades, including A2 (304) for excellent general-purpose corrosion resistance and A4 (316) for superior protection in harsh, wet, or marine environments. Unlike plated screws, the corrosion resistance is inherent to the material and will not chip or wear away, ensuring long-term integrity.
• Hex Socket Drive: The deep, clean internal hexagon socket (Allen drive) allows for high-torque installation with a standard hex key. This enables the screw to be set flush with or recessed below the component’s surface, resulting in a safe, compact assembly with no dangerous protrusions.

Product Parameters

The technical specifications for our DIN 916 Stainless Steel Hexagon Socket Set Screws are outlined below to meet your precise engineering requirements.

Product Features

Our stainless steel DIN 916 set screws are engineered with key features that deliver exceptional performance and value.

• Maximum Holding Power: The cup tip design provides the highest torsional and axial holding strength of all standard set screw types, making it the most reliable choice for preventing component movement.
• Permanent Corrosion Resistance: Fabricated from A2 or A4 stainless steel, these screws are built to last in damp, corrosive, or outdoor environments without rusting or degrading, ensuring long-term assembly integrity.
• Safe, Low-Profile Assembly: The headless design allows the screw to be installed flush with the surface, creating a clean and snag-free finish that is safe and ideal for rotating or moving parts.
• Excellent Vibration Resistance: The strong bite of the cup point into the shaft material creates a powerful mechanical lock that is highly resistant to loosening caused by vibration and dynamic loads.
• Adjustable and Reusable: These set screws provide a semi-permanent fastening that can be easily loosened with the correct tool, allowing for adjustments, maintenance, or disassembly when required.

Product Applications

DIN 916 stainless steel cup point set screws are an essential fastener in a vast array of mechanical and industrial fields. They are widely used in power transmission to securely fasten pulleys, sprockets, and gears onto motor and drive shafts. In machinery and automation, they are used to lock shaft collars, align bearings, and fix components within complex assemblies. They are also critical in tooling and fixturing for holding workpieces or setting adjustments. Their superior corrosion resistance makes them the primary choice for marine hardware, food processing equipment, outdoor installations, and any application where exposure to moisture or chemicals would compromise lesser materials.