12.9 Grade Bolts and Nuts for Sprocket and Segment

Sales 12.9 Grade Bolts and Nuts for Sprocket and Segment

We are a professional manufacture of earthmoving fastener. we could produce according to your drawings or samples.
  • Price Term : FOB/CIF/CFR

Product Detail  

12.9 Grade Bolts and Nuts for Sprocket and Segment Excavator and Bulldozer Spare Parts


1. Our Advantages


  • Through professional quench-tempering processes to guarantee excellent mechanical properties, high strength and superior wear resistance to avoid bending and breakage.
  • Our quality control is strictly performed from sourcing raw materials and different machining procession to final packing. 
  • 35 years' experience in Excavator & Bulldozer spare parts manufacturing. 
  • Professional sales team, maritime logistics guidance.
  • After-sale services:video technical support, 24h online support.


2. Structure and Main Dimensions


Structure and Main Dimensions of bolt and nut


3. Quality Detection


Metallic Phase Diagram

Bolt and Nut Metallic Phase Diagram


Surface: tempered sorbite and little free ferrite Grade 2.

Inner:  tempered sorbite and little free ferrite Grade 2.


4. Compatible Brands


Bolt and Nut Compatible Brands


5. Hot Sales

Hot sale plow bolt and nut

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If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.