China Screw Bolt Product Description We are happy to introduce ourselves as one of the famous organizations, providing stainless steel hex head bolts. The provided stainless steel hex head bolts are precisely manufactured with high-quality materials and precision technology in accordance with industry specifications. The hexagon head bolts can provide various specifications according to the different needs of customers. In addition, the stainless steel hex head bolts we provide have undergone various parameter checks to provide a defect-free range. Product equipment Feature These grade B8 screws are made of 18-8 stainless steel and have good chemical resistance. They may be slightly magnetic. These screws, also called pressure bolts, comply with ASTM A193 high pressure and high temperature regulations, and are used to fix pressure tanks, valves, and flanges. The length is measured from under the head. Screws should be used with ASTM A194 Grade 8 nuts. Some threaded screws have precise threads and unthreaded parts, allowing you to place only the stronger unthreaded part (handle) in the joint subject to lateral force. Test equipment Our factory Certificate Warehouse-MapChina Screw Bolt website:http://www.jgscrewnut.com/screw-bolt/