Understanding Self-Clinching Pins (TP, TPS, TP4)

Self-clinching pins, often referred to as TP (Type P), TPS, and TP4 pins, function by being pressed into a precisely sized hole in the sheet metal. A squeezing force is then applied, causing the pin to deform and "clinch" onto the material. This cold-flow process creates a strong, permanent connection, essentially transforming the pin into an integral part of the sheet metal.

Key Benefits of Self-Clinching Pins:

  • Strong and Permanent: The cold-flow clinching process ensures a secure and vibration-resistant connection between the pin and the sheet metal.
  • Single-Sided Access: Unlike traditional fasteners requiring access from both sides, self-clinching pins excel in situations with limited accessibility.
  • Versatility: These pins serve multiple purposes:
    • Attaching components
    • Creating space between panels
    • Aligning parts
  • Flush Finish (Optional): Many self-clinching pins offer a flush finish on the underside of the sheet metal for a clean and aesthetically pleasing design.

Types of Self-Clinching Pins (TP, TPS, TP4):

  • TP (Type P): A general-purpose self-clinching pin, typically made from steel with a zinc plating.
  • TPS: Recommended for use in steel or aluminum sheets with a Rockwell hardness of 70 or less (HRB scale).
  • TP4: Recommended for use in stainless steel sheets with a Rockwell hardness of 92 or less (HRB scale).

Understanding Terminology:

  • Thread Size (Optional): Some self-clinching pins have a threaded end for attaching additional components.
  • Pin Diameter: This refers to the overall diameter of the pin body.
  • Head Style: Self-clinching pins can have various head styles, such as flush, protruding, or chamfered.
  • Sheet Thickness: This indicates the recommended thickness of the sheet metal for a secure installation.
  • Hole Diameter: This is the size of the hole required in the sheet metal for installation.

Example of a Self-Clinching Pin:

Material Options for Self-Clinching Pins:
  • Steel Zinc Plated: A cost-effective choice for general-purpose applications.
  • Stainless Steel SS-304: Provides excellent corrosion resistance for harsh environments.
  • Aluminium: Ideal for weight reduction when weight is a critical factor.

Size Chart for Self-Clinching Pins (General Reference):

Important Note: This chart provides a general reference for common self-clinching pin sizes. It's vital to consult the specific manufacturer's product datasheet for the most accurate and up-to-date dimensional information for your chosen pin type (TP, TPS, TP4).

Pin Diameter (mm) Thread Size (Metric) Head Style Sheet Thickness (mm) Hole Diameter (mm)
2.0 - Flush 0.50 - 1.00 1.60
3.2 M2 Flush 0.70 - 1.50 2.20
4.0 - Flush 1.00 - 2.00 3.20
4.8 M3 Flush 1.20 - 2.50 3.80
5.0 - Flush 1.50 - 3.00 4.00
6.0 M4 Flush 1.50 - 3.00 4.80

Applications for Self-Clinching Pins (Continued):

  • Electronic Enclosures: They can be used to attach PCBs (Printed Circuit Boards), secure components, and create space for wiring.
  • HVAC Systems: These pins can fasten ductwork components, sensors, and control panels.
  • Automotive Applications: Self-clinching pins offer a permanent solution for mounting interior components and creating space for wiring harnesses.
  • Appliance Manufacturing: They are ideal for attaching control panels, knobs, and other components.
  • Furniture Manufacturing: These pins can be used to assemble furniture components and create space for panels.

Why Choose FastenKo.com for Your Self-Clinching Pins and Other Fasteners?

FastenKo.com is your one-stop shop for all your fastener needs, including high-quality self-clinching pins (TP, TPS, TP4). We also offer a vast selection of nuts, bolts, screws, and washers to complete your project requirements. Here's what makes us stand out:

  • Extensive Selection: We carry a wide variety of self-clinching pins in various materials, sizes, and head styles. Additionally, you'll find a comprehensive selection of nuts, bolts, screws, and washers to meet all your fastening needs.
  • Unbeatable Quality: We source our fasteners from reputable manufacturers, ensuring you receive top-quality products that are built to last.
  • Competitive Prices: We offer competitive pricing on all our fasteners, providing you with the best value for your money.
  • Fast Shipping: We understand the importance of getting your project completed on time. That's why we offer fast shipping options to get your fasteners to you quickly.
  • Expert Support: Our knowledgeable customer support team is always happy to answer your questions and help you choose the right fasteners for your application.

Get Your High-Quality Fasteners Today!

Head over to Fastenko.com today and explore our vast selection of self-clinching pins (TP, TPS, TP4), nuts, bolts, screws, and washers! Our user-friendly website allows you to easily filter products based on your specific requirements. If you have any questions or require assistance, don't hesitate to contact our expert customer support team. We're here to help you find the perfect fasteners to bring your project to life!