A Tension Pin, also known as a tension pin or spring pin, is a type of fastener designed to secure two or more components together with high reliability and ease of installation. These pins are cylindrical and feature a spring-like mechanism that allows them to compress upon insertion into a hole, then expand to grip the sides tightly, creating a secure, vibration-resistant connection. Tension pins are widely used in various industries, including automotive, aerospace, manufacturing, and electronics, due to their durability, reusability, and ability to handle shear and tensile loads effectively.
Our tension pins are manufactured to meet industry standards, ensuring quality and performance. Below are the detailed specifications presented in a table format for clarity.
| Parameter | Description | Values / Range |
|---|---|---|
| Material | Common materials used for construction | Carbon steel, stainless steel, alloy steel |
| Diameter | Outer diameter range | 0.5 mm to 20 mm |
| Length | Standard lengths available | 5 mm to 100 mm |
| Load Capacity | Maximum shear and tensile load | Up to 5000 N (shear), 3000 N (tensile) |
| Surface Finish | Coating or treatment for corrosion resistance | Zinc plating, black oxide, passivation |
| Temperature Range | Operating temperature limits | -40°C to 120°C |
| Standards | Compliance with industry standards | ISO 8752, DIN 1481, ANSI B18.8.2 |
Tension pins are versatile fasteners used in numerous applications. Here are some common uses:
What is the primary function of a tension pin?
A tension pin is primarily used to fasten two or more components together by exerting radial pressure against the hole walls, ensuring a tight and secure fit that resists loosening under vibration or load.
How do I select the right size tension pin for my application?
To select the correct size, measure the hole diameter and depth where the pin will be installed. Choose a tension pin with a diameter slightly larger than the hole to ensure a compression fit, and refer to load capacity charts based on material and application requirements.
Can tension pins be used in high-temperature environments?
Yes, but it depends on the material. Stainless steel tension pins can withstand temperatures up to 120°C, while special alloys may be required for higher temperatures. Always check the manufacturer's specifications for temperature limits.
Are tension pins reusable?
Absolutely. Tension pins are designed for multiple uses. They can be removed and reinstalled without significant loss of holding power, making them cost-effective for applications requiring frequent disassembly.
What is the difference between a tension pin and a roll pin?
Tension pins and roll pins are often used interchangeably, but tension pins typically refer to spring pins with a slotted design that compresses evenly, while roll pins are coiled and may have different compression characteristics. Both serve similar functions but may vary in performance based on design.
How do I install a tension pin properly?
To install a tension pin, align the pin with the pre-drilled hole and use a hammer or press to drive it in until flush. Ensure the hole is clean and deburred to prevent damage. For removal, use a punch tool to tap it out from the opposite side.
What materials are tension pins made from?
Common materials include carbon steel for general use, stainless steel for corrosion resistance, and alloy steel for high-strength applications. Coatings like zinc plating can enhance durability.
Can tension pins handle heavy loads?
Yes, tension pins are capable of handling significant shear and tensile loads. The exact capacity depends on the pin's diameter, material, and installation. Always refer to load tables provided by manufacturers for specific values.
Are there custom tension pins available?
Many manufacturers offer custom tension pins tailored to specific dimensions, materials, or coatings. Contact suppliers with your requirements for bespoke solutions.
What industries commonly use tension pins?
Tension pins are prevalent in automotive, aerospace, manufacturing, electronics, and construction industries due to their reliability and ease of use in securing mechanical assemblies.
