Spiral piles with nut series can have 3 nuts, which is the most common. There are also 6 nuts. We can weld the nuts according to the different requirements of customers. Under normal circumstances, the nut is M16 if the pile is relatively long, if the pile is particularly short, M8 nuts can also be welded. The function of the nut is to fix the pipe inside with bolts later. Welcome Inquiry.
