Set Screws

Set Screws – Precision Fastening with Versatile Point Options

At Newport Fasteners, we specialize in providing an extensive selection of high-quality Set Screws to meet the diverse needs of our customers. As a leading e-commerce store, we allow for 24/7 ordering, giving you the flexibility to order exactly what you need, whenever you need it. Our Set Screws are manufactured to the highest standards, using Class 3A threads and heat-treated alloy steel, ensuring superior strength, precision, and reliability in demanding applications.

Our Set Screws are governed by the ASME B18.3 standard, with a Class 3A Coarse Thread Pattern, providing tight, secure fastening in high-torque environments. Whether you need set screws for industrial machinery, automotive components, or precision instruments, Newport Fasteners offers a vast array of sizes, materials, and point configurations to ensure you find the perfect match for your project.


What Are Set Screws?

Set Screws are headless fasteners that are designed to secure one object within or against another object, typically using a threaded drive to apply clamping force. Unlike standard screws or bolts, set screws do not require a nut. They are driven into a tapped hole and are typically used to hold an object in place, such as securing a pulley to a shaft or preventing the movement of a collar on a rotating assembly.

Set screws come in various point types, each designed for specific applications to ensure optimal holding power and performance. At Newport Fasteners, we offer all the major point configurations, allowing you to choose the right fastener for your needs.


Key Features of Set Screws at Newport Fasteners

Our Set Screws are designed for maximum reliability, strength, and versatility. Here are the key features of our set screws:

  • Class 3A Threads: We offer Class 3A coarse thread patterns, which provide a tight, secure fit in tapped holes. Class 3A threads are known for their precision and strength, ensuring that the fastener remains firmly in place even under high torque or stress.
  • Heat-Treated Alloy Steel: Our set screws are made from heat-treated alloy steel, which enhances the screw’s hardness, tensile strength, and overall durability. This makes them perfect for heavy-duty applications where a strong, reliable fastener is critical.
  • Governing Standard – ASME B18.3: All of our set screws adhere to the ASME B18.3 standard, ensuring that they meet rigorous mechanical and dimensional requirements for high-quality socket screws.
  • Multiple Point Configurations: At Newport Fasteners, we offer a wide range of point types to suit different applications, ensuring that you find the perfect fastener for your specific needs.

Point Types – Versatile Options for Every Application

We understand that different applications require different fastening solutions. That’s why Newport Fasteners offers a comprehensive selection of Set Screws with various point types, each designed to provide maximum holding power, secure clamping, and long-lasting performance.

1. Cup Point

The Cup Point is the most commonly used point type for set screws. It features a concave tip that digs into the surface of the workpiece, providing a strong grip and resistance to slipping or loosening.

  • Applications: Ideal for securing collars, gears, and pulleys to shafts. The cup point creates high holding power and is suitable for most general-purpose applications.

2. Cone Point

Cone Point Set Screws have a sharp, conical tip that penetrates the surface of the material, offering permanent and precise placement. The pointed tip ensures high retention force, making it ideal for applications requiring permanent location of the fastener.

  • Applications: Used in assemblies where precision and long-term stability are critical, such as positioning shafts and locking into pre-drilled holes.

3. Dog Point & Half Dog Point

The Dog Point and Half Dog Point set screws have a cylindrical tip, extending beyond the thread of the screw. The dog point allows the screw to fit into a mating hole for alignment and provides a secure stop for the shaft.

  • Applications: Commonly used in applications requiring accurate alignment, such as in machinery or assemblies where exact positioning is needed.

4. Flat Point

The Flat Point Set Screw features a flat tip, which distributes pressure evenly across the surface of the material, minimizing damage. This type of point is ideal for softer materials where a more distributed force is needed to prevent wear.

  • Applications: Suitable for applications where frequent adjustment or removal is required, such as in light assemblies, where surface damage must be minimized.

5. Oval Point

Oval Point Set Screws feature a rounded tip that creates minimal surface damage while providing a secure hold. The oval point is perfect for adjustable assemblies that require frequent disassembly and reassembly.

  • Applications: Ideal for applications where the screw must be frequently adjusted without damaging the surface of the material, such as in machinery where parts need to be regularly repositioned.

6. Knurled Cup Point

The Knurled Cup Point set screw features a textured cup point that enhances gripping power. The knurled surface provides additional friction, ensuring a firm hold, even in high-vibration environments.

  • Applications: Ideal for use in softer materials, or in applications subject to vibration, where added gripping power is essential.

7. Slotted Set Screws

Slotted Set Screws offer a traditional slotted drive, providing ease of installation and adjustment. These screws are ideal for applications where precision adjustments are necessary.

  • Applications: Perfect for delicate assemblies or for situations where precise, manual adjustments need to be made without the use of power tools.

Applications of Set Screws

Set Screws are incredibly versatile fasteners that are used across a wide variety of industries and applications. Their headless design makes them ideal for securing components in place without the need for additional hardware, such as nuts or washers. Here are some of the key applications for set screws:

1. Industrial Machinery

In industrial machinery, set screws are used to secure gears, pulleys, and collars to shafts. The precise fit and high holding power make them ideal for applications where movement must be prevented, even under high stress or torque.

2. Automotive Industry

Set screws are commonly used in automotive applications, such as securing components in engines, suspensions, and transmissions. Their ability to hold parts in place without requiring extra space makes them indispensable in compact and high-performance assemblies.

3. Electronics and Precision Instruments

Set screws are often used in the assembly of electronic devices and precision instruments, where tight tolerances and precise adjustments are critical. The headless design ensures that the screws do not interfere with surrounding components.

4. Aerospace and Aviation

In the aerospace industry, set screws are used to hold components in place in tight, confined spaces where other fasteners would not be practical. Their high strength and precision make them suitable for high-performance applications where safety and reliability are paramount.

5. Custom Metalwork and Furniture Assembly

In custom metalworking and furniture assembly, set screws provide a sleek, headless option for securing components together. Their ability to create a secure, permanent hold without protruding from the surface makes them ideal for aesthetic designs.


Why Choose Newport Fasteners for Set Screws?

At Newport Fasteners, we pride ourselves on offering an extensive range of Set Screws that are designed for performance, reliability, and ease of use. Here’s why you should choose our set screws for your next project:

  • Class 3A Threads: Our set screws are manufactured with Class 3A coarse threads, providing a tight, precise fit that ensures long-lasting performance.
  • Heat-Treated Alloy Steel: Made from heat-treated alloy steel, our set screws offer exceptional tensile strength, hardness, and resistance to wear.
  • ASME B18.3 Compliance: All of our set screws are manufactured to ASME B18.3 standards, ensuring consistent quality and performance.
  • Vast Selection: We offer set screws in a wide range of sizes and point configurations, making it easy to find the perfect fastener for your project.
  • 24/7 Online Ordering: As an e-commerce store, we offer 24/7 ordering, allowing you to get the fasteners you need, exactly when you need them.

Order Your Set Screws from Newport Fasteners Today

Whether you’re looking for cup point, cone point, or flat point set screws, Newport Fasteners has the high-quality fasteners you need to complete your project. Browse our extensive catalog and place your order today for fast, reliable shipping. With our commitment to quality and customer satisfaction, you can trust Newport Fasteners for all your fastening needs.