Excavator track shoe bolt nut 12.9 grade track bolts and nuts

Through quench-tempering processes to ensure excellent mechanical properties, high strength and superior wear resistance to avoid bending and breakage.
Our roller shell is made of high quality alloy steel, through the whole heating quenching and tempering to increase the service life of supporting wheels.
Shaft uses high-quality manganese steel, quenched and tempered, high-frequency processing to meet the needs of high-intensity operations.
Advanced Germany KUKA automatic machining center, horizontal and vertical CNC machining ensure the accuracy of assembly dimensions.
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