All of the Blind Bolts BlindBolt supply are precision designed and engineered and manufactured from high tensile steel. They are high performing pieces of equipment provided in sizes ranging from M8 to M24, and if your project calls for protection from corrosive factors such as salt water BlindBolt can provide bolts with a Magni 560 style coating. This offers protection for up to 100 hours, and BlindBolt also provide particular sizes of bolt in A4 stainless steel.