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: 1 Thread: UNC 8 TPI Thread direction: Right Hand Width across flats: 1.45–1.5 in Width across corners: 1.653–1.732 in Nut height: 0.831–0.887 in Material specification: ASTM A563/A563M Material: Carbon Steel Finish: Hot Dip Galvanized Estimated mass: 136.145 g/pc
ASME B18.2.2 Hex Nut — ASTM A563 Grade A Nominal size: 1/2 Thread: UNC 13 TPI Thread direction: Right Hand Width across flats: 0.736–0.75 in Width across corners: 0.84–0.866 in Nut height: 0.427–0.448 in Material specification: ASTM A563/A563M Material: Carbon Steel Finish: Hot Dip Galvanized Estimated mass: 18.269 g/pc