This Brass Half Round Nut (20x4 M10x1) is engineered for both functionality and aesthetics in lighting applications. Its half-round profile allows for secure fastening against curved surfaces, a common requirement in lamp arms and decorative fixtures. Machined from high-quality brass, it ensures excellent corrosion resistance and provides a durable, conductive thread for grounding purposes, making it an ideal and reliable component for premium lighting assemblies.
Material: High-Quality Brass (Excellent corrosion resistance)
Style: Half-Round / Dome Profile
Finish: Natural Brass (Ready for plating/polishing)
Primary Use: Secure fastening on curved lighting components
Key Feature: Combines structural integrity with a decorative appearance
Decorative Lighting: Fastening joints on curved lamp arms, chandelier components, and sconces.
Structural Assembly: Used as a nut on rounded tubes or pipes in lamp stands and fixtures.
Electrical Grounding: Provides a reliable threaded point for grounding connections due to brass's conductivity.
| Specification | Value | Notes |
|---|---|---|
| Product Type | Half Round Nut | Also known as a Dome Nut |
| Outer Dimensions | 20mm x 4mm | Diameter x Height |
| Thread Size | M10 x 1 | Metric Fine Thread |
| Material | Brass | CuZn39Pb3 or equivalent |
| Finish | Natural (Mill) | Provides a perfect base for custom finishes |
| Finish | Natural Brass |
Aesthetic Integration: The half-round design sits flush against curved surfaces, creating a seamless and professional look in final lamp designs.
Superior Corrosion Resistance: Brass construction prevents rust and tarnish, ensuring long-term reliability and maintaining appearance in various environments.
Machinability & Durability: Brass offers excellent machining properties for precise threads and high tensile strength, preventing stripping and ensuring a secure, long-lasting fit.
Electrical Conductivity: Inherent conductivity of brass allows for effective electrical grounding when used in metallic lighting structures, enhancing safety.
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.