Xiamen Doozer Construction Machinery Co., Ltd.
                                                                                                           
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19 Years
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Grade 8.8 Black Oxide Hex Bolts Hex Screw Bolt 35CrMo No.303-9441 For Caterpillar Excavator

Price Negotiable
Price: 0.2/100pieces
MOQ: 100 pieces
Delivery Time: 30 work days
Brand: Doozer
Product Description
Grade 8.8 Black Oxide Hex Bolts Hex Screw Bolt 35CrMo No.303-9441 For Caterpillar Excavator
Product Specifications
Attribute Value
Product name Track Bolt
Material 40Cr /35CrMo
Grade 12.9
Package Carton + pallets
Application Undercarriage parts
Weight 0.14kg
Process Hot punch, cold punch
Product Overview
Our Grade 8.8 Black Hex Stainless Steel Bolts and Nuts (No. 303-9441) are engineered for Caterpillar excavators, meeting the rigorous demands of construction, mining, and industrial applications. These high-quality replacement parts ensure reliable operation of heavy-duty machinery.
Technical Parameters
Material 40CR, 35CRMO
Grade 10.9, 12.9
Finish Color Grey, Black
Machine Heating forging machine
Warranty One Year / 2000 hours (Normal life 4000 hours)
Packing Standard exported wooden pallet, fumigate seaworthy packing
Key Features
  • Superior Strength: Grade 8.8 steel withstands tensile loads up to 80 kN and yield loads up to 64 kN, ideal for excavator operations.
  • Corrosion Resistance: Black oxide coating and stainless steel material provide excellent protection against rust in harsh environments.
  • Precision Fit: Manufactured to exact Caterpillar specifications for secure connections and minimal wear.
Applications
These bolts are essential for Caterpillar excavator maintenance, including:
  • Attachment points for buckets and excavation tools
  • Undercarriage components (tracks, rollers, idlers)
  • Engine and hydraulic system mounting
Installation & Maintenance
Installation: Always use manufacturer-recommended torque specifications with a torque wrench for proper clamping force.
Maintenance: Regularly inspect for wear, corrosion, or looseness. Clean with appropriate solvent and replace damaged components immediately.
Order Information
Available with competitive pricing, fast shipping (within 30 days), and excellent customer service. Payment options include T/T or L/C at sight. Port of shipment: XIAMEN Port. OEM/ODM services available.
Product Images
Grade 8.8 Black Hex Bolt for Caterpillar excavator - front view Grade 8.8 Black Hex Bolt for Caterpillar excavator - side view Grade 8.8 Black Hex Bolt for Caterpillar excavator - packaging Grade 8.8 Black Hex Bolt for Caterpillar excavator - close-up detail

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Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Xiamen Doozer Construction Machinery Co., Ltd.
Location 6B1, 2 Xinglin North Road, Xiamen, Fujian, China
Contact Person Ruan

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