Unifit Metalloys supplies high-strength ASTM A325 Type 3 structural bolts, made from weathering steel that naturally forms a protective oxide layer, eliminating the need for galvanizing or painting. These heavy hex bolts meet ASTM A325 (now F3125 Grade A325) standards with a tensile strength of 105 ksi for sizes over 1″ to 1½″, and deliver exceptional atmospheric corrosion resistance—... https://www.unifitmetalloys.com/fasteners-manufacturer-exporter.html