General description A M30 x 130 mm Hex Bolt made from A4 stainless steel, which offers superior corrosion resistance compared to A2 grade stainless steel, particularly in harsh environments. This bolt is ideal for marine applications, especially in direct contact with salt water. Technical specifications Diameter: M30 Length: 130 mm Thread Pitch: 3.5 mm b: 72 mm s: 45 mm k (min): 18.28 mm Standard: DIN931