• Bolts and nuts-M22-55mm manufactures excavator undercarriage parts source factory in China
  • Bolts and nuts-M22-55mm manufactures excavator undercarriage parts source factory in China
  • Bolts and nuts-M22-55mm manufactures excavator undercarriage parts source factory in China
  • Bolts and nuts-M22-55mm manufactures excavator undercarriage parts source factory in China
  • Bolts and nuts-M22-55mm manufactures excavator undercarriage parts source factory in China

Bolts and nuts-M22-55mm manufactures excavator undercarriage parts source factory in China

Product Specifications



Bolts-M20-55mm.

Here's a clear breakdown of the key features and benefits of Cat® fasteners :

  1. Precision Engineered for Performance:

    • Feature: Manufactured to precise specifications.

    • Benefit: Ensures durability, reliability, and efficiency in demanding applications. Consistent quality leads to predictable performance and longer service life.

  2. Superior Strength & Guaranteed Quality:

    • Feature: Meet or exceed major international standards (ISO, ASTM, ASME, SAE).

    • Benefit: Provides confidence in strength and quality. They are rigorously tested and proven to perform under the stresses required by these recognized industry benchmarks, ensuring safety and integrity in critical assemblies.

  3. Optimized System Design:

    • Feature: Bolts, nuts, and washers are specifically designed to work together as a system.

    • Benefit: Maximizes clamp force and joint integrity. This coordinated design ensures components interact optimally, reducing the risk of loosening, fatigue failure, or uneven stress distribution compared to mismatched components.

  4. Application-Specific Protection:

    • Feature: Various coatings available to meet special requirements.

    • Benefit: Enhanced corrosion resistance and performance tailored to specific environments (e.g., salt spray, chemicals, high temperature). Provides flexibility for different operating conditions.

    • Environmental Compliance: Coatings are RoHS compliant, ensuring they meet strict regulations restricting hazardous substances (like lead, cadmium, mercury), making them suitable for global markets with environmental requirements.

Specifications for Part No. 304-9129

  • Thread size (diameter × pitch) (mm): M20X2.5

  • Coating: Zinc flake

  • Material: Steel

  • Class or Grade: ISO 898-1 Class 10.9

  • Hand of Thread: RH

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