Stainless Steel Railway Track Fishtail Bolts M10-M125 with Black Surface Finish for Rail Joint Connections

Fishtail bolts, also known as rail bolts or fishtail wires, are specialized fasteners designed for railway track connections. These M10 bolts feature a distinctive semicircular head with two internal protrusions, providing secure fixation between rail joint splints (fishplates). Available in various sizes including Φ14×70, Φ16×75, Φ18×90, Φ20×90, Φ22×135, Φ24×135, Φ24×145, and Φ24×170, these fasteners ensure reliable track stability and alignment.

• Railway track laying and maintenance
• Metallurgical industry applications
• Coking industry installations
• Steel industry infrastructure
• Crane rail and elevator guide rail systems

• Apply oil to contact surfaces between fish plate and rail
• Alternate nut positions inside and outside during installation
• Follow proper tightening sequence: middle bolts first, then side bolts
• Use appropriate 55cm screw wrench for tightening
• Align bolt holes properly without hammering bolts into position

Our fishtail bolts undergo rigorous quality control including magnetic particle inspection to detect defects such as cracks, slag inclusions, or material inconsistencies. We maintain SGS-ISO9001:2008 quality system certification and CRCC certification, ensuring consistent performance and reliability.

Produced through hot-forging processes with friction presses, our bolts feature a standard buckle length of 50mm. Threads are precision-rolled using specialized threading equipment to ensure dimensional accuracy and thread integrity.

• 20+ years of manufacturing experience
• SGS-ISO9001:2008 and CRCC certified
• Professional engineering team with 60+ specialists
• Supply capacity: 1000 tons per month
• Custom manufacturing available per customer specifications