Our UNS N08028 Stud Bolts, fabricated from Alloy 28 (W.Nr. 1.4563), offer robust performance for oil and gas pipelines. Available in sizes ranging from M8 to M64, with lengths from 30 to 800 mm and a hardness of 155 HB, these bolts are engineered to withstand corrosive environments and provide reliable fastening solutions in demanding industrial applications. China Flange Gasket Bolt Nut Kits Manufacturer Co., Ltd. (https://www.flangegasketboltkits.com/) is a professional pipeline products supplier in China, who mainly provides flanges, gaskets, bolt & nut kits and other pipe & fitting products. We have rich experience in projects and professional service, and can provide pipe & fittings with very good quality for global customers.