1.Size: 1/2"-3" 2.Materials:A193 B7/2H 3.ASME B18.2.1,B18.2.2 4.Surface:Hot dipped Galv,Zinc yellow ,PTFE STUD BOLTS and U_BOLTS:1. Din 975, class 4.8, class 8.82. UNC, 2A, grade 2, grade 5, ASTM A193 B73. Size: 1/2 " to 3 ". 4. Length: 50mm to 4000mm or 2 to 12' 5. Finish: Plain, black ,zinc plated, hot dip galvanized,PTFE,Xylan.HEX BOLTMaterial: ASTM A193 B7,B8,B8M.Specification: ANSI B18.2.1, ...