Knurl Nuts

Knurl Nuts are precision-engineered fastening components designed to provide a firm grip, enhanced torque resistance, and reliable assembly in both metal and plastic Materials. With their distinctive knurled surface, these nuts prevent slippage and ensure a secure fit even under vibration or rotational stress.
Our custom knurled nuts are available in a wide range of materials—including stainless steel, brass, aluminum, and carbon steel—and can be CNC machined, forged, or turned to meet exact customer specifications. As a high precision knurled nut manufacturer in China, we offer full OEM/ODM customization, from size and thread type to surface finish and knurl pattern.

Key Features

• High Precision & Stability: Each CNC knurled nut is machined to tight tolerances for smooth assembly and consistent performance.

• Strong Anti-Slip Grip: The knurled surface design increases friction and prevents loosening due to vibration.

• Customizable Options: Available in multiple thread sizes (M3–M12), materials, and finishes.

• Wide Material Compatibility: Ideal for use in metal, plastic, and electronic assemblies.

• Enhanced Durability: Resistant to wear, corrosion, and deformation even under heavy load or high-temperature environments.

• OEM & ODM Service: Professional custom knurl nut manufacturer offering CNC machining, forging, and cold heading solutions.

Manufacturing Process

Our precision knurl nuts are produced through a combination of advanced metalworking processes to ensure dimensional accuracy and durability:

1. CNC Turning & Milling – Guarantees precise thread and knurl formation.

2. Cold / Hot Forging – Increases strength and material density.

3. Knurling Process – Creates an accurate knurl pattern for anti-slip function.

4. Thread Cutting or Rolling – Ensures perfect internal threading.

5. Heat Treatment – Enhances hardness and fatigue resistance.

6. Surface Finishing – Provides superior corrosion resistance and aesthetics.

Material Selection

We provide a wide range of materials based on application and performance needs:

• Brass: Excellent conductivity and corrosion resistance; ideal for brass knurled nuts for electronics and plastic.

• Stainless Steel (SS304 / SS316): High strength, anti-corrosive, suitable for marine and industrial environments.

• Aluminum: Lightweight with high machinability, perfect for aerospace and Automotive assemblies.

• Carbon Steel: High tensile strength and cost-effective choice for structural applications.

Surface Treatment Options

Our knurled threaded nuts can be customized with various finishes to improve performance and appearance:

• Polishing

• Zinc / Nickel / Chrome Plating

• Anodizing (for aluminum knurled nuts)

• Passivation

• Black Oxide Coating

• Electroless Nickel Plating

Precision & Quality Control

Each precision knurled nut is produced under strict quality standards.

• Tolerance Control: ±0.01 mm precision.

• Surface Roughness: Up to Ra 0.8 µm for smooth finishes.

• Testing Equipment: CMM (Coordinate Measuring Machine), thread gauges, hardness testers, and torque testers.

• Certification: ISO 9001:2015 / RoHS / REACH compliant.

Applications

Our knurled nuts are widely used across multiple industries, offering reliable fastening performance in demanding environments:

• Automotive Components

• Industrial Machinery

• Aerospace Assemblies

• Electronic Devices

• 3D Printing & Prototyping

• Consumer Appliances

• Marine & Construction Hardware

FAQ

Q1: Can you make custom knurled nuts based on drawings or samples?
A1: Yes, we provide custom precision knurled nuts according to 2D/3D drawings or physical samples.

Q2: What is your lead time?
A2: Standard lead time is 10–20 days depending on quantity and complexity.

Q3: Do you offer surface treatment and heat treatment in-house?
A3: Yes, all CNC knurled nuts undergo in-house finishing and hardness control.

Q4: Can I order small batches for testing?
A4: Absolutely. We support low MOQ for prototyping and sample testing before mass production.

Q5: Are you a manufacturer or trading company?
A5: We are a professional OEM knurled nut manufacturer in China, offering full machining and assembly services.