This Brass Half Round Nut (30x5, M13x1) is precision-engineered for the demanding requirements of high-end lighting fixtures. Its unique half-round design ensures a secure and flush fit against curved surfaces, commonly found in lamp arms, bodies, and decorative elements. Crafted from high-quality brass, it offers excellent corrosion resistance and superior electrical conductivity, making it both a functional and safety-critical component for durable and beautiful luminaire assembly.
Material: High-Quality Brass
Style: Half-Round (Domed)
Finish: Natural Brass (Ready for Plating/Painting)
Thread Type: Metric Fine (M13x1)
Primary Use: Lighting Fixture Assembly
Securing components on curved lamp arms and stems.
Decorative fastening on sconces, chandeliers, and pendant lights.
Providing a finished, professional look at connection points.
Assembling structural joints in commercial and residential lighting.
| Specification | Value |
|---|---|
| Product Type | Half Round Nut |
| Outer Dimension | 30mm (Diameter) x 5mm (Height) |
| Thread Size | M13 x 1 (Metric Fine) |
| Material | Brass |
| Finish | Natural / Raw Brass |
| Knurling Type | Diamond Pattern, Medium Pitch |
| Finish | Natural Brass, Polished |
Aesthetic Integration: The half-round profile sits flush against tubular structures, eliminating gaps and creating a seamless, professional finish.
Superior Conductivity: Brass ensures reliable electrical grounding between components, a critical safety factor in metal light fixtures.
Corrosion Resistance: Inherently resistant to oxidation and rust, ensuring long-term reliability and maintaining appearance.
Machinability: Allows for easy custom finishing, such as polishing, nickel, or chrome plating, to match specific design requirements.
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.