Cold heading Service

Set screw Manufacturer In China

Ningbo Teng Qi Fasteners Co., Ltd specializes in the production of hexagon socket, torx and other set screws (stop screws, screws). Product standards include DIN, GB, ANSI, ISO, and JIS. Our company uses advanced equipment, best materials and molds. The materials include 304, 302, 316, Scm435, 35ACR and domestic high-quality copper materials. Performance grade: stainless steel, 45H, 33H. Specifications M1.4-M30, no length limit, and we can produce non-standard products with high quality requirements. Because we are professional and attentive, our customers can rest assured.



Set screws, including DIN 913, DIN 914, DIN 915, DIN 916, and ASME B18.3, are precision-engineered fasteners designed for diverse applications. Produced from materials like steel or stainless steel, they feature a hexagon socket drive for easy installation and removal. The point types vary—flat, cone, dog, or cup—meeting specific needs such as flush installation, concentrated pressure, or alignment. Thread specifications adhere to either metric (DIN) or Unified Inch (ASME B18.3) standards. Surface finishes, sizes, and tolerances are tailored to each standard, ensuring reliable and precise performance in machinery, automotive, electronics, and various other applications.

Product Name:Set Screw
DiameterThe diameter of a set screw refers to the measurement across its threads. It is typically specified as the major diameter, which is the largest diameter of the screw's threads.
LengthThe length of a set screw is the measurement from the bottom of the head (or the point, in the case of headless set screws) to the end of the threads. This dimension determines how deeply the screw can be threaded into a tapped hole or onto a shaft.
ClassSteel: 45H
Stainless Steel;A2-70,A4,C3,A2-50
TypeSet screws come in various types, such as cup point, flat point, cone point, and more, each designed for specific applications.
Drive TypeThe internal socket for tightening can have different drive types, with hex socket (Allen wrench) being a common choice, but others like slotted or Phillips are also used.
Point StyleThe point of the set screw can vary, with common styles like cup, flat, cone, and oval points, each offering distinct advantages in terms of holding power and surface contact.
MaterialSet screws are made from different materials, including stainless steel, alloy steel, and brass, depending on factors like strength and corrosion resistance.
Manufacturing Processwire drawing, cold heading, thread rolling, heat treatment, surface treatment
Surface treatmentBlack Oxide Coating/Plain

When specifying set screws, it’s important to consider the requirements of your application to ensure that the chosen set screw is compatible with the materials, forces, and conditions it will encounter.

Type of Set Screw:

There are several types of set screws, each designed for specific applications. Some common types include:

1. Cup Point Set Screw: This type has a cup-shaped indentation at the end, which helps it dig into the material it’s being tightened against. It provides good holding power but may leave a mark on the surface.

2. Cone Point Set Screw: Similar to the cup point, the cone point set screw has a pointed end that allows it to dig into the surface. The pointed shape provides better holding power and is less likely to leave a visible mark.

3. Flat Point Set Screw: This type has a flat, straight end that applies pressure over a larger area. It’s often used when the set screw needs to bear against a flat surface without causing damage.

4. Oval Point Set Screw: The oval point set screw has an oval-shaped indentation at the end. This type offers good holding power while minimizing damage to the surface.

5. Knurled Cup Point Set Screw: In addition to the cup-shaped indentation, this type also has knurling (cross-hatched grooves) on the surface, which enhances its grip.

6. Half Dog Point Set Screw: This type has a flat end with a small raised portion, providing both good grip and some positioning ability.

7. Full Dog Point Set Screw: Similar to the half dog point, but the raised portion covers the entire end. This type is often used in applications where the set screw needs to be precisely positioned.

Each type of set screw has its own advantages and is chosen based on factors such as the materials being joined, the required holding power, and the potential for surface damage.

Manufacturing Quality Control of Set Screw:

In a world where connections matter, Ningbo Teng Qi Fasteners is more than just a fasteners supplier and manufacturer. We are architects of stability, builders of relationships, and champions of your success. From skyscrapers that reach for the sky to machines that power industries, our fasteners form the backbone of progress. When you choose Ningbo Teng Qi Fasteners, you choose unwavering quality, exceptional service, and a partner who understands that every bolt holds a piece of your vision.

Control MethodDetail
Material Inspection:Verify the material's composition, heat treatment, and quality upon receipt. Conduct metallurgical analysis to ensure the material properties meet the standards.
Process Control:Implement strict process control measures for heat treatment, machining, threading, and any other manufacturing steps. Maintain consistent process parameters to ensure uniform quality.
Inspection Points:Introduce inspection points at various stages of manufacturing to check for defects, dimensions, and quality. Inspect threading, dimensions, surface finish, and other critical parameters.
Sampling and Testing:Regularly sample products for testing, such as tensile testing, hardness testing, and metallurgical analysis, to ensure they meet the required specifications.
Thread Inspection:Thoroughly inspect threading using proper thread gauges to ensure accurate dimensions and fit with mating components.
Traceability:Implement a traceability system to track each fasteners journey from raw material to final product. This aids in accountability and recalls if necessary.

Application of  Set Screw:

Set screws, essential threaded fasteners without traditional heads, play a pivotal role across diverse applications. From securing components in machinery and mechanical assemblies to fastening hubs, couplings, and shaft collars, these unassuming screws provide stability and reliability. Used in construction for securing structural elements and in adjustable mechanisms for maintaining desired positions, set screws prove their versatility. This summary offers a glimpse into the multifaceted applications of set screws, emphasizing their significance in ensuring precision and stability across various industries.

Shaft Fixing:Set screws are commonly used to secure components such as gears or pulleys onto shafts, preventing unwanted movement.
Hub and Collar Fastening:In machinery, set screws are employed to fasten hubs or collars onto shafts, providing a secure connection.
Adjustment Mechanisms:Set screws are commonly used in shaft collars to fix them in a specific position on a shaft, preventing undesired movement.
Positioning Components:Set screws are used in mechanisms where precise adjustments are required, such as in the positioning of components.
Locking Components:They are often used to lock components in place, ensuring stability and preventing unintended disassembly.
Clamping:Set screws are utilized in clamping applications, providing a secure grip on components within machinery or equipment.
Alignment in Assemblies:In manufacturing, set screws aid in aligning and securing parts within assemblies, ensuring proper functionality.
Pulley and Sprocket Fastening:Set screws are employed in securing pulleys and sprockets to shafts, facilitating the transmission of motion.
Automotive Applications:Set screws find use in various automotive components, including securing sensors, gears, or other parts where a flush fit is essential.
Furniture Construction:In furniture assembly, set screws contribute to joining parts securely, allowing for a neat and stable construction.
Construction Industry:Set screws may be used in construction for fastening and aligning specific components where a flush or hidden installation is desired.
Electronics: In electronic devices, set screws may be used to secure components within housings, ensuring a stable and compact assembly.