Growshine International specializes in manufacturing high-quality carbon steel hex bolt square head connecting rod bolts for construction machinery, heavy trucks, agricultural equipment, and automotive applications. Our premium fasteners are engineered to meet OEM specifications for brands including Caterpillar, Komatsu, Volvo, John Deere, and more.
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Visit 1688 StoreGrowshine International offers custom manufacturing services for various mechanical components including connecting rod bolts, turbocharger parts, hydraulic components, and engine fasteners. We can produce according to your specifications and drawings with competitive pricing and fast turnaround times.
Our carbon steel hex bolt square head connecting rod bolts feature:
Material: High-grade carbon steel
Surface Treatment: Anti-corrosion coating
Head Type: Square head design for secure installation
Thread Type: Fine pitch for maximum clamping force
Temperature Resistance: -40°C to 250°C
Tensile Strength: 1000 MPa minimum
Available part numbers: 3G-2720, 3G2720, 4L-3245, 4L3245, 7N-8943, 7N8943
Our connecting rod bolts are compatible with various equipment models including:
Caterpillar 320D Excavator engine assembly
Komatsu PC200-8 hydraulic system components
Volvo EC210B construction machinery engines
John Deere 9520 tractor powertrain systems
Case IH Magnum 340 agricultural equipment
Installed in the turbocharger assembly of heavy-duty trucks like Volvo FH16, this component adjusts vane position to optimize boost pressure across different engine RPM ranges.
Critical component in excavator arm cylinders such as those in Caterpillar 336D, transmitting hydraulic force to create mechanical movement for digging operations.
Located in the cylinder head of engines like Cummins ISX15, this precision component atomizes fuel for efficient combustion in heavy truck powerplants.
Mounted on the undercarriage of bulldozers like Komatsu D65, these components support the machine's weight and guide the track chain during operation.
Installed in the gearbox of agricultural tractors like John Deere 8295R, these friction discs facilitate gear changes in powershift transmissions.
Critical component in the front axle of mining trucks like Caterpillar 777D, connecting the wheel hub to the suspension while allowing steering articulation.
Located in the track drive assembly of excavators like Hitachi ZX350, this gear reduction system provides high torque for track movement in tough conditions.
Mounted on the engine of heavy trucks like Freightliner Cascadia, this device regulates air pressure in the braking system for commercial vehicle safety.
Central component in grain harvesters like Case IH Axial Flow 8230, this rotating assembly separates grain from stalks through impact and friction.
Installed in the exhaust system of modern diesel engines like those in Kenworth T880, this heat exchanger reduces nitrogen oxide emissions by cooling recirculated exhaust gases.
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Problem Description: The hydraulic system on a Komatsu PC300-8 excavator consistently overheats during extended operation, reaching temperatures above 95°C and triggering warning alarms.
Root Cause Analysis: After diagnostic testing, technicians identified multiple contributing factors:
Contaminated hydraulic fluid with excessive particulate matter
Partially blocked hydraulic oil cooler fins
Worn main hydraulic pump causing internal leakage and efficiency loss
Faulty relief valve maintaining higher than normal system pressure
Solution Implementation:
Complete hydraulic system flush and fluid replacement with premium ISO 46 hydraulic oil
Thorough cleaning of hydraulic oil cooler and radiator assembly
Replacement of main hydraulic pump with genuine Komatsu replacement part
Adjustment of system relief valves to specified pressure settings
Installation of additional temperature monitoring gauge for operator awareness
Result: Hydraulic system operating temperature stabilized at 75-82°C during normal operation, eliminating overheating warnings and restoring machine productivity.
Connecting rod bolts are critical fasteners in internal combustion engines that secure the connecting rod cap to the rod body. These bolts endure tremendous cyclic loads from combustion pressures and inertial forces. Our carbon steel hex bolt square head connecting rod bolts are specifically engineered for heavy-duty applications in construction equipment, agricultural machinery, and commercial vehicles.
The square head design provides superior torque transmission during installation and prevents rotation under vibration. The hex bolt configuration allows for standard tool compatibility while the high-grade carbon steel construction ensures optimal tensile strength and fatigue resistance. Proper installation torque and sequence are crucial for even clamping force distribution and preventing rod bearing failure.
At Growshine International, we manufacture these critical components to exacting standards, ensuring precise thread pitch, proper heat treatment, and surface finishing that meets or exceeds OEM specifications for equipment from leading brands including Caterpillar, Komatsu, Volvo, and John Deere.
As a leading supplier in the industrial components sector, Growshine International specializes in the import and export of engineering machinery parts, heavy truck components, agricultural equipment parts, and automotive accessories. Our comprehensive product range and global logistics capabilities make us the preferred partner for businesses worldwide.
Our expertise extends to providing complete solutions for:
Construction machinery replacement parts and maintenance components
Heavy-duty truck engine systems and drivetrain components
Agricultural equipment implements and powertrain parts
Commercial vehicle electrical systems and accessories
Industrial hydraulic components and pneumatic systems
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