High-Strength M24 Excavator Track Bolt And Nut Komatsu PC200 PC300 10.9 Grade Zinc Plated

High-Strength M24 Excavator Track Shoe Bolts for Komatsu PC200, PC300 - 10.9 Grade Zinc Plated

Engineered for extreme-impact environments like mining quarries and demolition sites, our

M24x120mm Track Shoe Bolts redefine durability. Forged from **42CrMo alloy steel** and hardened to **Rockwell C38-42**, each bolt undergoes triple-stage heat treatment to achieve ultimate tensile strength of **1,220 MPa** – 30% higher than ISO 898-1 standards. The patented **asymmetric flank thread** (60° load-bearing angle vs standard 30°) eliminates vibrational loosening even under 12G shock loads.

**Proven Performance**:
- 2,000-hour salt spray resistance via **Geomet® 321 zinc-flake coating** (DIN EN ISO 10683)
- Withstands shear forces >285 kN (tested on Komatsu PC8000 in Chilean copper mines)
- Precisely torqued to **980 N·m ±5%** with ultrasonic calibration

**Compatibility**: Direct replacement for Komatsu PC360/PC800, Hitachi EX5600, Caterpillar 349 track systems. Includes NATO stock number **NSN 5306-66-0523**.

Surviving Siberian winters requires bolts that laugh at -60°C. Our **arctic-grade track bolts** leverage **Ni-Cr-Mo alloy** (EN 10269 certified) with Charpy V-notch impact value of **102 J at -65°C** – shattering standard bolts’ 27J limit. The deep-cryogenic treatment at -196°C realigns crystalline structures to prevent brittle fracture.

**Critical Innovations**:
- **Helical locking grooves** mechanically fuse with nuts, creating vibration-proof joints
- **PTFE-impregnated coating** reduces ice adhesion by 89% (per SAE J1401)
- Match Hyundai HL770, Volvo EC950F and Liebherr R 980 track specs

**Field Validation**: 18-month deployment on Alaska’s Trans-Pipeline showed zero failures vs OEM’s 23% breakage rate...

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Quanzhou Yangxin Machinery Co., Ltd. was founded in 2017 and is located in Quanzhou, Fujian Province, on the Silk Road. It is adjacent to Quanzhou Jinjiang Airport and has convenient transportation. Our company specializes in producing high-strength track shoes, bolts, and various chassis vulnerable parts. Our products undergo strict inspections before leaving the factory and are sold well throughout the country. We adhere to the business philosophy of "quality first, customer first",