This precision brass connector is engineered for creating robust and reliable joints in tubular lighting structures. Specifically designed to connect 20mm outer diameter tubes to 16mm outer diameter tubes, it features a secure M3 threaded hole for added stability and accessory attachment. Crafted from high-quality brass, it ensures excellent corrosion resistance, electrical conductivity, and a durable, long-lasting finish suitable for both functional and decorative lighting applications.
Material: High-Grade Brass (CZ121/C36000)
Compatible Tubing: Connects Ø20mm to Ø16mm Tubes
Threading: M3 Internal Thread
Primary Function: Tube-to-Tube Connection & Stabilization
Surface: Natural Brass, ready for plating or clear coating.
Structural Framing: For connecting tubes of different diameters in custom chandeliers, pendant lights, and architectural lighting structures.
Component Mounting: The M3 thread allows for the secure attachment of wiring clips, decorative elements, or secondary light arms.
Industrial & Commercial Lighting: Ideal for assembly in robust lighting fixtures where mechanical strength and electrical grounding are required.
| Specification Category | Details |
|---|---|
| Material | Brass Alloy CZ121/C36000 |
| Primary Tube OD (Outer Diameter) | 20 mm |
| Secondary Tube OD (Outer Diameter) | 16 mm |
| Thread Size | M3 x 0.5 mm Pitch (Internal) |
| Finish | Natural (Unplated) |
| Key Property | Excellent Machinability & Corrosion Resistance |
Superior Conductivity: Provides a reliable electrical path for grounding within the lighting fixture, enhancing safety.
Machining Precision: Made from free-cutting brass, ensuring tight tolerances for a perfect fit with standard tubing, reducing assembly time.
Long-Term Reliability: Brass offers inherent resistance to oxidation and corrosion, preventing seizing and ensuring the joint remains serviceable for the life of the fixture.
Customer Service
With over 20 years of dedication to the lighting and hardware industry, we provide a professional and reliable supply of lighting fixture parts.Our commitment to quality and excellence is validated by international certifications, ensuring that our products meet the highest global standards for performance and safety.




Q1. Can I have a sample order for the product?
A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.
Q2. What about the lead time?
A: 3-5 days for Sample preparing ,8-10 working days for mass production.
Q3. How do you ship the goods and how long does it take to arrive?
A: Ship by DHL, UPS, FedEx or TNT. It takes 3-5 days to arrive. Airline and sea shipping also optional.