Double Layers Spring Threaded Sunflower Star Nut Tube Connector

Application Scenarios

This type of connector is a specialized fastener designed for creating secure, threaded connections within cylindrical tubes. Its double-layer construction and star-shaped (sunflower) design provide a strong, vibration-resistant grip that can often be adjusted by hand without tools .

Based on product listings, the main application scenarios include:

Furniture Assembly: Ideal for connecting components like table legs, chair frames, and shelving units, especially where a sleek, tool-free assembly is desired .
Bicycles and Outdoor Equipment: Commonly used for securing handlebar stems, seat posts, and other tubular connections on bicycles and outdoor gear where vibration resistance is crucial .
Industrial Machinery: Suitable for use in equipment that experiences vibration or dynamic loads, as the spring mechanism helps prevent loosening over time .
General Tube Connections: Designed to fit a wide range of tube diameters, providing a snug and secure fit for stable assembly in various mechanical or structural applications .

The products are typically made from durable materials like steel, stainless steel, or carbon steel, with surface treatments such as zinc plating, black oxide, or nickel plating to provide corrosion resistance for use in different environments, from indoor furniture to outdoor or industrial settings .

⚙️ Production Processes

While the search results do not detail a step-by-step manufacturing guide, they reveal key aspects of the production and customization process that define the final product's quality and specifications .

The table below summarizes the key production parameters and available customizations:

Aspect	Description / Options	Key Benefit
Materials	Steel, Carbon Steel, Stainless Steel, Aluminum, Brass	Allows selection based on strength and corrosion resistance needs.
Thread Sizes	Wide range from M2 to M56 metric, and imperial equivalents	Ensures compatibility with various tube and bolt diameters.
Surface Finishes	Zinc-plated, Black Oxide, Nickel Plated, Polished, Chrome Plated	Provides corrosion resistance and desired aesthetic appearance.
Customization	Custom logo, packaging, and thread sizes are available for large orders (MOQ varies, e.g., 30,000 pcs)	Allows for tailored solutions for specific industrial or brand requirements.
Quality & Compliance	Certified to meet standards like RoHS, REACH, and EPR for environmental and safety regulations	Ensures products are safe for use and compliant for export to markets like the EU.