Unifit Metalloys is a trusted manufacturer, supplier, and exporter of ASTM A325 Type 3 structural bolts (heavy hex bolts made of weathering steel). These bolts are quenched and tempered and designed for structural applications where atmospheric corrosion resistance is required. Our product range includes bolts, studs, nuts, washers, and custom fasteners, all supplied with full certifi... https://www.unifitmetalloys.com/fasteners-manufacturer-exporter.html