Screw spikes
ss5, ss8, ss25, ss36 and other specifications
65,000 Psi (high strength 100,000 psi available)
Meets ASTM A-66 specifications, TB436-77, GB10487-89, AREMA66-87, BS, UIC
Hot forged and hot thread rolled screw spike
Material: GB700-88 steel, Q 235
Applied on railway lines equipment with wooden sleeper, turn-outs and switches.[...]