A2 stainless steel square head small head bolt square head bolt M4 M5 M6/M8-M12
Size: M4 M5 M6 M8 M10 M12. Material: A2 stainless steel. The product is made of A2 stainless steel, which has the characteristics of good corrosion resistance, oxidation resistance, heat resistance, high strength and high toughness.