Hex Nut Different material & shape are available, like Brass hex nut, long hex nut, hex panel nuts, stainless steel hex nut, aluminum hex nut, Stainless steel bolts, Stainless steel Screws, also OEM up to drawing. Hexagon nut made of low carbon steel or carbon steel or stainless steel or brass hex nuts, aluminum or other special material, up to requirement, which could be plated by black oxide, zinc electro, phosphate, copper, mechanical galvanization, or hot dip galvanization.