ASME B18.2.2 hex nuts in this controlled TT BOLT catalog are inch-series regular hex nuts from Table 1.1.1-5. The catalog covers 14 nominal sizes from 1/4 in through 1-1/2 in and 56 controlled grade-and-finish variants.
ASME B18.2.2 hex nut selection guide
Use diameter, UNC or 8UN thread, ASTM A563 Grade A or B and finish to select the required product. Every product page provides the dimensional limits and theoretical mass for that exact variant. Jam, heavy hex, square, flange, coupling and machine-screw nuts are separate product forms and are not mixed into this category.
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
ASME B18.2.2 Hex Nut — ASTM A563 Grade A Nominal size: 1/4 Thread: UNC 20 TPI Thread direction: Right Hand Width across flats: 0.428–0.438 in Width across corners: 0.488–0.505 in Nut height: 0.212–0.226 in Material specification: ASTM A563/A563M Material: Carbon Steel Finish: Hot Dip Galvanized Estimated mass: 3.539 g/pc
