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Cold Heading Pipe Fittings Round Coupling Screw Connection Nut Steel Sleeve Bushings Long Round Joint Nut

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Pipe Connection & Motion Support: Designed to connect and secure pipe systems through screw-based couplings, providing rotational and sliding motion between components in machinery and equipment.
  • Versatile Thread Compatibility: Supports a wide range of thread sizes (M4 to M24) to accommodate diverse mechanical and structural applications.

Key features

  • 1. Corrosion-Resistant Surface Treatments

  • With DACROMET and white zinc surface treatments, ensure long-lasting durability in corrosive environments, outperforming traditional zinc-plated alternatives*.

  • 2. Versatile Thread Compatibility

  • With thread sizes ranging from M4 to M24, easily adapt to diverse screw specifications for plumbing, machinery, and automotive applications*.

  • 3. Secure Hex Nut Design

  • With a hexagonal nut design, achieve precise torque control and secure fastening using standard wrenches, reducing slippage compared to non-hex designs*.

  • 4. Customizable Material & Finish Solutions

  • With materials like stainless steel and finishes like polished or oxidized surfaces, tailor components to specific scenarios—e.g., corrosion resistance for marine use or smooth operation in high-friction machinery*.

  • 5. Eco-Friendly DACROMET Coating

  • With DACROMET surface treatment, meet environmental standards by avoiding chromate-based coatings, reducing ecological impact while maintaining corrosion resistance*.

Product details

Cold Heading Pipe Fittings Round Coupling Screw Connection Nut Steel Sleeve Bushings Long Round Joint Nut

Our Cold Heading Pipe Fittings Round Coupling Screw Connection Nut Steel Sleeve Bushings are precision-engineered components designed for robust mechanical assemblies. Available in materials like steel, stainless steel, and copper, these bushings and nuts feature customizable thread sizes (M4–M24) and surface treatments, ensuring adaptability for diverse industrial applications.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialAluminium, Iron, Steel, Stainless Steel, CopperHigh-stress machinery, corrosive environments, thermal applications
FinishCopperElectrical conductivity or aesthetic finishes
Surface TreatmentWhite Zinc, DACROMET, BlackEnhanced corrosion resistance for marine/industrial use
Thread SizeM4, M5, M6, M8, M10, M12, M14, M16, M18, M20, M22, M24Customized fit for pipes and threaded components
Head TypeRoundSmooth motion in rotating/sliding applications
Nuts TypeHex NutSecure fastening in tight spaces

Customization guide

Adjust thread size (M4–M24) to fit precise mechanical tolerances or select surface treatments like DACROMET for marine environments. For specialized needs, customize material (e.g., copper for conductivity or stainless steel for corrosion resistance) to optimize performance.

Get inspired

These bushings and nuts are versatile for applications requiring durability and precision, such as automotive assemblies, industrial machinery, and plumbing systems. Their customizable materials and finishes allow tailored solutions for corrosion-prone environments or high-temperature operations.

Choose your model

ParameterBase Model (Steel + White Zinc)Advanced Model (Stainless Steel + DACROMET)Pro Model (Aerospace Aluminum + Black Oxide)
Material Strength400 MPa+15% (460 MPa)+30% (520 MPa)*
Corrosion Resistance500 hours salt sprayEnhanced (1,200 hours)Premium (2,000 hours)
Thread PrecisionClass 6gClass 5gClass 4g

Supplier's note

  1. Key Breakthroughs:

    • Material Diversity: Stainless steel reduces rust in harsh environments.
    • DACROMET Coating: Outperforms traditional zinc in saltwater exposure (20% longer lifespan).
    • Thread Precision: Pro Model’s Class 4g threads ensure minimal wear in high-vibration machinery.
  2. Optimal Selection:

    • Base Model: Ideal for general industrial use (e.g., automotive assembly lines).
    • Advanced Model: Perfect for marine or chemical plants needing corrosion resistance.
    • Pro Model: Choose for aerospace or high-stress robotics requiring extreme durability.

With stainless steel and DACROMET coating, you can ensure longevity in corrosive environments. The Pro Model’s enhanced material strength enables safe handling of heavy machinery loads, paired with precise threads for seamless integration.

Note: Comparative values are based on industry benchmarks for similar components.

Frequently asked questions

  • Which cold heading pipe fitting material is best for high-pressure industrial applications?

  • How do I maintain steel sleeve bushings to prevent corrosion?

  • What thread sizes are available for round coupling nuts, and can they be customized?

  • Can copper round coupling nuts be customized for specific diameters?

  • Are stainless steel sleeve bushings suitable for outdoor machinery exposed to rain?

  • What’s the difference between white zinc and black surface treatments for iron nuts?

  • Which model of cold heading pipe fitting suits small automotive parts (e.g., M5-M10 threads)?

  • Are these bushings certified for food-grade machinery compliance?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material CompositionHigh-strength or lightweight needsStainless Steel 316 (ASTM A182) ▲▲ (vs Base Steel A307)Enhanced corrosion resistance and durabilityHigher cost compared to standard materials
Surface TreatmentMoisture/chemical exposureDacromet (ASTM F2329, 20μm) ▲▲ (vs Base White Zinc 12μm)Eco-friendly and superior corrosion protectionRequires specialized handling
Thread Standard ComplianceGlobal projectsISO 228-1 + DIN 933 ▲▲ (vs Base ISO 228-1 + ANSI B1.1)Broad compatibility with international standardsCustom compliance may limit availability
Corrosion ResistanceMarine/chemical environments1500 hours (ASTM B117) ▲▲ (vs Base 1000h)Extended lifespan in corrosive conditionsAdvanced versions may have longer lead times
Load CapacityHeavy machinery3000 N (ASTM F564) ▲▲ (vs Base 2500 N)Supports heavier loads safelyHeavier materials may complicate installation
Finish ThicknessAesthetic/high-wear uses0.0008" (ASTM B322) ▲▲ (vs Base 0.0005")Improved durability and appearanceMay affect thread tolerances

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The comparison data is based on manufacturer information and industry standards. Actual results may vary depending on individual use cases. It is advisable to verify details with the supplier for the most accurate information.