Quanzhou Mingzhu Technology Development Co., Ltd
| Strength Grade | Grade 12.9 |
| Material | 40Cr Alloy Steel |
| Delivery Time | 3-5 days |
| Packaging Details | Export pallet packaging |
| Thread Manufacturing | Precision Rolled Thread |
| Supply Ability | 1500 MT/month |
| Payment Terms | T/T,D/A,L/C |
| Optional Finish | Phosphate / Zinc Plated |
| Product Type | Track Bolt |
| Heat Treatment | Integral Quenching & Tempering |
| Certification | CE、CNAS、COC、SGS、ISO |
| Model Number | M19x57mm |
| Brand Name | STST |
| Place of Origin | Fujian, China |
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Product Specification
| Strength Grade | Grade 12.9 | Material | 40Cr Alloy Steel |
| Delivery Time | 3-5 days | Packaging Details | Export pallet packaging |
| Thread Manufacturing | Precision Rolled Thread | Supply Ability | 1500 MT/month |
| Payment Terms | T/T,D/A,L/C | Optional Finish | Phosphate / Zinc Plated |
| Product Type | Track Bolt | Heat Treatment | Integral Quenching & Tempering |
| Certification | CE、CNAS、COC、SGS、ISO | Model Number | M19x57mm |
| Brand Name | STST | Place of Origin | Fujian, China |
| High Light | bulldozer excavator track bolts ，m19x57mm excavator track bolts ，m19x57mm excavator track pad bolts | ||
The M19x57mm Track Bolt is a premium fastening solution engineered for excavator and bulldozer undercarriage systems. Manufactured from high-strength alloy steel and enhanced through precision hot forging and advanced heat treatment, this track bolt provides superior wear resistance, exceptional tensile strength, and long-lasting fastening reliability.
Feature | Customer Benefit |
|---|---|
| Superior Wear Resistance | Longer operating life in abrasive environments |
| High Tensile Strength | Supports heavy-duty applications |
| Heat-Treated Alloy Steel | Enhanced hardness and durability |
| Precision Rolled Threads | Secure and consistent tightening |
| Excellent Fatigue Resistance | Reliable performance under repeated loading |
| Corrosion-Resistant Finish | Improved outdoor durability |
| Stable Clamping Force | Reduces maintenance and bolt loosening |
| OEM Manufacturing Standards | Consistent fit and dependable quality |
The hardened alloy steel construction significantly improves resistance to abrasion caused by mud, sand, rocks, and continuous track movement, helping extend the operating life of both the bolt and the undercarriage assembly.
Engineered to provide stable clamping force under continuous vibration and shock loading, the M19x57mm track bolt minimizes the risk of loosening during demanding field operations.
Advanced quenching and tempering processes increase tensile strength, hardness, and toughness, allowing the fastener to withstand heavy working loads without deformation.
Rolled metric threads provide smooth installation, accurate torque application, and improved resistance to thread wear, ensuring dependable fastening performance over extended service intervals.
Long-lasting materials and excellent fatigue resistance reduce replacement frequency, contributing to lower maintenance costs and improved machine uptime.
Every M19x57mm track bolt undergoes comprehensive quality inspections before shipment:
Our strict quality management process ensures every fastener meets the performance requirements of modern heavy equipment undercarriage systems.
Packaging options include:
Products are securely packed to protect against damage during international transportation and are available for worldwide shipment.
The bolt is designed for excavator and bulldozer undercarriage systems requiring M19×57 mm track bolts. Compatibility should be confirmed using the machine model or OEM part number.
The bolt is manufactured from premium alloy steel and undergoes quenching and tempering to provide excellent strength, wear resistance, and durability.
Its combination of high-strength alloy steel, precision thread rolling, advanced heat treatment, and wear-resistant surface finish enables reliable performance under heavy loads, continuous vibration, abrasive materials, and extreme operating environments.
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Company Details
Business Type:
Manufacturer
Year Established:
2006
Total Annual:
8000000-12000000
Employee Number:
67~120
Ecer Certification：
Verified Supplier
Quanzhou Mingzhu Technology Development Co., Ltd Quanzhou Mingzhu Technology Development Co., Ltd
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