9W3619 9W3361 Track Bolt and Nut Bolts Track for CAT Excavator

  Our company sources high-quality  alloy steel from certified suppliers to guarantee  international quality standards. This high tensile 12.9 grade carbon steel track  bolts is paired with a matching nut, featuring a standard size of M20×1.5×55MM and OEM part numbers 9W3619 and 9W3361.Manufactured from premium carbon steel and subjected to rigorous heat treatment, it exhibits exceptional hardness, strong anti-fatigue characteristics, wear resistance, and impressive load-bearing capacity, making it ideal for the demanding environments of earthmoving machinery, This product is widely used as an undercarriage spare part for bulldozers and excavators, securely fastening the track roller and related crawler components. It effectively minimizes the risk of loosening and breakage during heavy-duty operations. Its reliable quality, extended service life, and strict size tolerance make it the perfect replacement fastener for equipment used in engineering construction, mining, and road construction. We offer bulk supply and customized services tailored for global machinery aftermarket buyers