... flange din6923 Hexagon nuts with flange din69231. standard : Hexagon nuts with flange din69232. material : carbon steel , brass , stainless steel3. size ... product other bolts , nuts , screws and so on .Our main products are bolts, screws, nuts, machine screws, plain washers, spring lock washers, wood screws, tapping screws, drilling screws, chipboard screws, drywall screws, furniture screws, rivets ...