... manganese, phosphorus etc SpecificationsStainless Steel U bolt 1.Material: Stainless steel 316 or stainless steel 304 or steel 2.Surface:zinc, nickel ... ,galvanized3. Certificate: ISO 9001:2000 1) Material :steel, carbon steel, stainless steel2) Surface treatment: Zinc plated,power coated ... electrical galvanized etc3) Size: we can supply U bolt with all kinds of sizes or according to samples4) Thickness ...