Elegant Knurled Copper Nut for Sleek and Stylish Flower Designs

• Customization: Available
• Material: Brass
• Type: Round Head
• Model NO.: 1-1
• Connection: Common Bolt
• Head Style: Round
• Standard: DIN
• Grade: 4.8
• Applicable Industries: Construction, Manufacturing
• Surface Treatment: True Color
• Whether to Support Customization: Support
• After-Sales: Three Months
• Transport Package: Container Loading
• Specification: 1-30
• Trademark: Huilin
• Origin: Handan, Hebei
• HS Code: 0101101010
• Production Capacity: 50000

Product Description

Description of Rolled Copper Nut: Dive into the world of exceptional fasteners with our expertly crafted rolled copper nuts. Designed for excellence and reliability, these precision-engineered fasteners utilize high-grade copper alloys to deliver outstanding performance and durability.

1, Product Definition and Core Features:

Rolled Copper Nut: Crafted from superior copper alloys like H62 brass and C3604 lead brass, these fasteners are the epitome of innovation and durability. Manufactured through cold heading and machining, each nut features expertly rolled straight or mesh patterns to enhance its grip. Key attributes include excellent conductivity, superior corrosion resistance, and a reliable anti-loosening function, making it indispensable in electronics, machinery, and automotive industries. Discover the core design philosophy:

• Roll Pattern Structure: Through meticulous physical extrusion, each nut is adorned with tooth-shaped patterns with depths of 0.05-0.2mm. These patterns significantly boost frictional resistance, ensuring a secure hold against the substrate.

Copper-Based Characteristics: Leveraging copper's exceptional conductivity (≥ 58MS/m) and robust corrosion resistance (surpassing a 72-hour salt spray test), these nuts are ideally suited for high-precision equipment, ensuring seamless performance and longevity.

2, Technical Parameters and Structural Analysis:

1. Key Parameters [Table]:
Application Scenarios and Parameter Standards: A detailed guide to the versatile applications and standard value ranges of our rolled copper nuts.
Material: H62 Brass (Cu62%, Zn38%) - Perfect for electronic device casings and communication modules, offering optimal performance and reliability.
Hardness: HB80-120 (annealed state) - Ensures safe installation on thin plates without damaging the substrate, providing a secure and reliable fastening solution.
Thread Specifications: Metric M2-M10, Imperial 4-40UNC - Perfect for securing PCB boards and sensor brackets, accommodating a variety of application needs with precision.
Roll Pattern Type: Straight Grain (120 °) and Mesh Pattern (Diamond Cross) - Engineered for environments prone to vibration, ensuring anti-loosening performance and secure shaft connections.
Surface Treatment: Featuring nickel plating (Ni ≥ 5 μ m), passivation, and natural polishing, these treatments prevent oxidation and fulfill conductivity requirements, providing longevity and consistent performance.

2. Structural Innovation Points:

Double End Embossing Design: With one end embossed and the other chamfered, this design harmonizes anti-loosening and guiding functions, exemplified by M3 × 0.5 nuts with a 15° chamfer.

Thin Wall Strengthening Process: Utilizing cold extrusion to thicken wall thickness from the conventional 0.8mm to 1.2mm, this process enhances torsional strength to ≥ 15N · m, ensuring robust performance in demanding scenarios.

3, Application Scenarios and Selection Logic:

1. Typical Application Scenarios:

Electronic Devices: Securely fasten phone frames to PCB boards using M2 × 0.4 embossed copper nuts. Nickel plating ensures long-lasting oxidation protection.

Automotive Industry: Ideal for connecting sensors to metal brackets, M4 × 0.7 mesh roller patterns withstand temperatures up to 150 ºC, providing reliable performance under high thermal conditions.

Precision Instrument: M2.5 × 0.45 straight line rolling offers a low friction coefficient (≤ 0.15) for optical lens focusing rings, enhancing precision and accuracy.

2. Three Step Selection Method:

Step 1: Substrate Matching

Soft Plastic (e.g., PC): Opt for straight grain embossing and annealed state (hardness HB80) to prevent cracking and ensure secure fastening.

Metal Substrate (e.g., Aluminum Alloy): Choose mesh rolling and nickel plating to bolster corrosion resistance, ensuring longevity and reliability.

Step 2: Load Verification

Static Load: Confirm the tensile strength of a single M3 knurled copper nut is ≥ 300N, guaranteeing robust and stable performance.

Dynamic Load: Ensure no loosening occurs after 2000 vibration test cycles (10-55Hz, 1.5mm amplitude), assuring reliable functionality under dynamic conditions.