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: 1-3/8 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
ASME B18.2.2 Hex Nut — ASTM A563 Grade A Nominal size: 3/8 Thread: UNC 16 TPI Thread direction: Right Hand Width across flats: 0.551–0.562 in Width across corners: 0.628–0.65 in Nut height: 0.32–0.337 in Material specification: ASTM A563/A563M Material: Carbon Steel Finish: Hot Dip Galvanized Estimated mass: 7.789 g/pc
