UNS S32560 Fasterners manufacturer and supplier of high integrity Super Duplex Stainless Steel Fasteners, such as bolts, set screws, nuts and washers. These duplex fasteners meet demands for critical applications in aggressive corrosion environments, whether for petro-chemical plants, pump or nuclear. These high quality fasteners are thoroughly inspected to meet all standard international standards, such as ASTM, ASME etc.