Bolt & Nut Manufacturing is a ISO 9001/14001/45001/PED approved manufacturer of special bolting for Electrolysers. We are able to manufacture all parts of the spring assembly including the Tie Rod, Nuts, Bosses, Sleeves and Spring Disc Washers. We are able to work with any grade of material ranging from Carbon Alloys and Stainless Steels trhough to Exotic Nickel Alloys and Duplex grades. All our products are fully traceable and come complete with 3.1 Certification.