Custom Knurled Nut

Custom Knurled Nuts are engineered for applications that require superior grip, reliable fastening, and easy hand-tightening without tools. As a professional custom knurled nut manufacturer and CNC machined knurled nut supplier in China, we offer fully customized solutions including thread size, Material options, knurl patterns, surface finishes, and special tolerances.

Our custom knurled nuts are widely used in electronics, instruments, machinery, automotive components, aerospace devices, industrial equipment, and more. Whether you need round knurled nuts, hex knurled nuts, knurled thumb nuts, or precision CNC knurled nuts, we deliver high-quality parts designed for demanding applications.

Key Features

• High Grip Performance
  Precision-engineered knurled patterns (diamond, straight, or custom) ensure excellent manual tightening and anti-slip performance.

• Custom Thread Options
  Support for metric and UNC/UNF sizes, including M3–M20, #4–#24, 1/4”, 3/8”, and special non-standard threads.

• Multiple Shapes Available
  Round knurled nuts, hex knurled nuts, long knurled nuts, thin knurled nuts, and custom designs.

• OEM / Custom Manufacturing
  As a custom knurled nut factory, we support OEM drawings, samples, and personalized machining requirements.

• High Precision & Consistency
  CNC Turning, knurling, and milling processes ensure precise dimensions and excellent repeatability.

• Durable & Corrosion Resistant
  Widely used in harsh environments thanks to premium surface treatments and stainless steel/brass options.

Manufacturing Process

Our custom knurled nuts are produced using advanced machining and forming processes:

1. CNC Turning

Creates accurate outer diameter, threading, chamfering, and basic profile for CNC machined knurled nuts.

2. Precision Knurling

Diamond or straight knurl patterns are formed through automated knurling tools to achieve consistent grip.

3. CNC Milling (Optional)

For hexagonal shapes, slots, special flats, or custom geometries.

4. Thread Cutting or Rolling

Internal threads are precision-cut to ensure smooth assembly and tight fastening.

5. Heat Treatment (If required)

Enhances hardness, torque resistance, and long-term durability—commonly used for carbon steel knurled nuts.

6. Surface Treatment

Final protective and cosmetic finishing to improve corrosion resistance and appearance.

Material Selection

We provide custom knurled nuts in a wide selection of high-performance materials:

• Stainless Steel (304 / 316)
  Excellent corrosion resistance; ideal for outdoor, marine, and industrial environments.

• Brass (C3604 / H59 / H62)
  Great machinability, attractive appearance, perfect for electronics and instrumentation.

• Aluminum Alloy (6061 / 7075)
  Lightweight, corrosion-resistant, suitable for aerospace and consumer products.

• Carbon Steel / Alloy Steel
  High strength and cost-effective; can be heat-treated for demanding applications.

• Titanium (Optional)
  Ultra-lightweight and corrosion-resistant for aerospace and medical uses.

Surface Treatment Options

• Anodizing (for aluminum)

• Nickel plating

• Zinc plating (clear, black, yellow)

• Chrome plating

• Black oxide

• Sandblasting finish

• Polishing

• Passivation (stainless steel)

These coatings greatly improve corrosion resistance, durability, and visual appeal.

Precision & Quality Control

Every custom CNC knurled nut undergoes strict inspection:

• Thread gauges (GO / NO-GO)

• Digital calipers & micrometers

• 3D coordinate measuring machine (CMM)

• Surface roughness tester

• Hardness tester

• Visual inspection & knurl consistency check

Typical tolerances:

• Diameter tolerance: ±0.02–0.05 mm

• Thread tolerance: ISO 6H / 6G, UNC/UNF class 2A/2B

• Knurl depth: 0.2–0.8 mm (customized available)

Our quality control ensures each precision knurled nut meets international standards.

Applications

Custom Knurled Nuts are widely used in:

• Electronics & consumer devices

• Industrial machinery

• Automotive components

• Aerospace instruments

• Medical equipment

• Communication devices

• Outdoor tools & equipment

• Control panels & instrumentation

Their grip-enhancing design makes them ideal for manual adjustments, fastening, and tool-free installation.

FAQ

1. Do you support custom designs?

Yes. As a custom knurled nut manufacturer, we accept drawings, samples, or technical requirements for full customization.

2. What is your minimum order quantity?

MOQ varies by design, usually 500–2,000 pcs for custom parts.

3. What materials can you produce?

Stainless steel, brass, aluminum, carbon steel, alloy steel, and titanium.

4. What is your production lead time?

Typical lead time:

• Samples: 7–10 days

• Bulk orders: 15–25 days

5. Can you provide OEM service?

Yes. We are an OEM custom knurled nut factory serving global brands.

6. Do you offer surface finishing?

Yes—anodizing, plating, polishing, black oxide, and more.