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: 1-1/4 Thread: 8UN 8 TPI Thread direction: Right Hand Width across flats: 1.812–1.875 in Width across corners: 2.066–2.165 in Nut height: 1.03–1.094 in Material specification: ASTM A563/A563M Material: Carbon Steel Finish: Hot Dip Galvanized Estimated mass: 255.324 g/pc
ASME B18.2.2 Hex Nut — ASTM A563 Grade A Nominal size: 1-1/8 Thread: 8UN 8 TPI Thread direction: Right Hand Width across flats: 1.631–1.688 in Width across corners: 1.859–1.949 in Nut height: 0.939–0.999 in Material specification: ASTM A563/A563M Material: Carbon Steel Finish: Hot Dip Galvanized Estimated mass: 191.329 g/pc