Size: Normal Dia : ¼" to 4" 6-100 mm Length : As Specified by user or Upto any Length. Specification Standard: DIN ASME BS BS EN ISO ASTM Material: Carbon Steel, Mild Steel, Alloy Steel, Ferritic & Austenitic Stainless Steel Grades : ASTM A 320 L7L7MB8B8M ; SS304316 ;ASTM A 193 B7B7MB16B8B8M Threads: UNC, 8UN, UNF, Metric Coarse & Fine Series Surface Finish: Plain,Zinc Plated , Hot Dip Galvanized, P.T.F.E. Coated