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: 7/8 Thread: UNC 9 TPI Thread direction: Right Hand Width across flats: 1.269–1.312 in Width across corners: 1.447–1.516 in Nut height: 0.724–0.776 in Material specification: ASTM A563/A563M Material: Carbon Steel Finish: Hot Dip Galvanized Estimated mass: 91.188 g/pc
ASME B18.2.2 Hex Nut — ASTM A563 Grade A Nominal size: 9/16 Thread: UNC 12 TPI Thread direction: Right Hand Width across flats: 0.861–0.875 in Width across corners: 0.982–1.01 in Nut height: 0.473–0.496 in Material specification: ASTM A563/A563M Material: Carbon Steel Finish: Hot Dip Galvanized Estimated mass: 28.26 g/pc