https://www.jnzcsb.com/products/flange-bolts.html The china flange bolt is an integral bolt composed of a hexagon head, a flange, and a screw. According to the different positions of the flange bolt china, the size requirements of the flange are different, and there are flat bottom and toothed ones, and the toothed ones play an anti-skid role. High-strength flange bolts have the advantages of being able to withstand higher preload, good anti-loosening performance, precise decoration, and strong durability. Flange bolts are widely used in engines, heavy machinery, roads, railways, bridges, and other fields. Specification of Flange Bolts Thread specification range (mm) M16-M90 Maximum processing length (mm) ≤1500mm