TT BOLT is a manufacturer and supplier of industrial fasteners, specializing in high-quality bolts, nuts, washers and custom fastening solutions.
Our products are manufactured according to international standards including DIN, ISO, ASTM and ASME, serving industries such as construction, oil & gas, petrochemical, mining, power generation, heavy machinery and infrastructure projects.
ASME B18.2.2 Hex Nut — ASTM A563 Grade A Nominal size: 5/8 Thread: UNC 11 TPI Thread direction: Right Hand Width across flats: 0.922–0.938 in Width across corners: 1.051–1.083 in Nut height: 0.535–0.559 in Material specification: ASTM A563/A563M Material: Carbon Steel Finish: Hot Dip Galvanized Estimated mass: 35.512 g/pc
ASME B18.2.2 Hex Nut — ASTM A563 Grade A Nominal size: 7/16 Thread: UNC 14 TPI Thread direction: Right Hand Width across flats: 0.675–0.688 in Width across corners: 0.768–0.794 in Nut height: 0.365–0.385 in Material specification: ASTM A563/A563M Material: Carbon Steel Finish: Hot Dip Galvanized Estimated mass: 13.763 g/pc