The railway industry demands fasteners that will not loosen under the constant, heavy vibration of passing trains. SRG Fasteners manufactures heavy-duty track bolts, fishplate bolts, and specialized lock nuts for railway infrastructure.
We also supply high-tensile components for the assembly of the rolling stock (carriages and locomotives), ensuring passenger safety and operational reliability.
Frequently Asked Questions
How do track bolts prevent loosening?
Track bolts are often paired with heavy-duty spring washers (like DIN 127) or specialized self-locking nuts (like Nyloc or all-metal prevailing torque nuts) to resist vibration-induced loosening.