Hex Socket Cone Point Set Screws

Hex Socket Cone Point Set Screws

As a premier factory and manufacturer in China, we specialize in the production of high-strength DIN 914 Hexagon Socket Cone Point Set Screws. These headless fasteners, also known as grub screws, are engineered for applications requiring the highest degree of permanent or semi-permanent locking and positioning. Manufactured from hardened carbon steel and finished with a protective black oxide coating, these screws feature a sharp, conical point designed to deliver concentrated pressure for a secure, wedge-like grip. They are the ultimate solution for locking shaft components, such as gears, pulleys, and collars, where maximum resistance to axial and torsional forces is essential.

Product Details

Our DIN 914 set screws are precision-machined to provide reliable performance in demanding industrial environments. They are headless, fully threaded fasteners that function by being driven into a threaded hole to press against an inner object, creating a secure lock.

  • DIN 914 Standard with Cone Point: This screw adheres to the DIN 914 standard (equivalent to ISO 4027), which specifies a cone point. The sharp, conical tip is designed to achieve the highest holding power by penetrating the surface of the mating component. For maximum effectiveness, it is typically used with a pre-drilled hole or against a material softer than the screw itself. This deep penetration creates a powerful, permanent lock.
  • High-Strength Carbon Steel with Black Oxide Finish: These screws are forged from high-grade carbon alloy steel (such as 45H) and heat-treated to achieve high-strength property classes like 8.8, 10.9, and 12.9. This process gives the cone point the necessary hardness to effectively dig into the shaft without deforming. The black oxide coating provides moderate corrosion resistance for indoor or lubricated environments, prevents galling, and offers a non-reflective, professional finish.
  • Hex Socket Drive: The internal hexagonal drive (Allen drive) allows for high-torque installation with a standard hex key. This enables the screw to be driven flush with or recessed below the surface, creating a safe, compact assembly with no hazardous protrusions.

Product Parameters

The technical specifications for our DIN 914 Cone Point Set Screws are outlined below to meet the rigorous demands of your application.

ParameterSpecification
Product NameDIN 914 Hexagon Socket Cone Point Set Screws
StandardDIN 914 / ISO 4027
MaterialHigh-Strength Carbon Steel (e.g., 45H)
Grade8.8, 10.9, 12.9
Surface TreatmentBlack Oxide Coating
Point StyleCone Point
Drive StyleInternal Hex Socket (Allen)
Diameter RangeM1.4 – M24
Brand NameDuojia
Place of OriginHebei, China
Key FeatureHighest axial holding power for permanent or semi-permanent setting
ApplicationHeavy Industry, General Industry, Machinery, Automotive, Electronics

Product Features

Our DIN 914 cone point set screws are engineered with distinct features for superior locking performance.

  • Maximum Holding Power: The cone point delivers the highest torsional and axial holding strength of all set screw types, making it ideal for permanent “set and forget” applications where reliability is paramount.
  • Precision and Fine Adjustment: The sharp point allows for exact positioning and can be used as a pivot point or for making fine adjustments in mechanical assemblies.
  • High Hardness and Strength: The heat-treated alloy steel ensures the screw is significantly harder than the mating shaft, allowing the cone point to penetrate and create a positive lock without deforming.
  • Safe, Headless Design: The ability to install the screw flush with the surface eliminates dangerous protrusions, making it perfect for rotating or moving assemblies where safety and clearance are critical.
  • Durable Protective Finish: The black oxide coating provides good corrosion protection in controlled environments and acts as a lubricant to prevent thread seizure during high-torque installation.

Product Applications

DIN 914 cone point set screws are indispensable in applications that demand a permanent, high-strength lock. They are widely used in power transmission for permanently fixing gears, sprockets, and pulleys to shafts. In tool and die manufacturing, they serve as pivots, locators, and secure locking elements in jigs and fixtures. They are critical in automotive systems for securing components in transmissions and steering assemblies. In precision equipment and electronics, they are used for fine-tuning and securely positioning critical components. Their high strength also makes them suitable for any heavy-duty machinery application where a component must be permanently fixed against a shaft.