Standard: ASME/ANSI B18.2.2, ASME/ANSI B18.2.4M, ASME B18.2.6/6MSize: 1/4" - 4", M6 - M100Material: Carbon Steel, Alloy Steel, Stainless SteelGrade: ASTM A194/A194M Grade 2H,2HM,4,4L,7,7L,7M,7ML,8,8M,16ASTM A563 Grade A, C, DHASTM A563M Class 5, 8S, 10SFinish: Plain, Zinc Plated, Black Oxide