Hex flange bolts Flange bolts Size:M5-M20 Material:stainless steel,carbon,etc. Finish:According to customer requirements Hex flange boltsFlange boltsSize:M5-M20Material:stainless steel,carbon,etc.Finish:According to customer requirementWe are specializaed in manufacturing different kinds of fasteners.such as,screws,nuts,washers,bolts,self-tapping screws,self-tappping and self-drilling screws,non- ...