WJ-8 fastener

WJ-8 fastener is a kind of non-open shoulder stopper fastener used on ballastless track of high-speed rail in China. It is composed of spiral spike, flat washer, spring bar, insulated gauge block, gauge baffle, underrail cushion plate, iron cushion plate, elastic cushion plate under iron cushion plate and embedded casing, etc. In addition, it also includes underrail fine adjustment plate and iron cushion plate down high cushion plate to meet the needs of high and low adjustment