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.