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: 1-3/8 Thread: 8UN 8 TPI Thread direction: Right Hand Width across flats: 1.994–2.062 in Width across corners: 2.273–2.382 in Nut height: 1.138–1.206 in Material specification: ASTM A563/A563M Material: Carbon Steel Finish: Hot Dip Galvanized Estimated mass: 337.263 g/pc
ASME B18.2.2 Hex Nut — ASTM A563 Grade A Nominal size: 3/4 Thread: UNC 10 TPI Thread direction: Right Hand Width across flats: 1.088–1.125 in Width across corners: 1.24–1.299 in Nut height: 0.617–0.665 in Material specification: ASTM A563/A563M Material: Carbon Steel Finish: Hot Dip Galvanized Estimated mass: 57.721 g/pc