Hex Bolt Product Description A193 GRADE B7 STUDS AND THREADED RODS ITEM: STANDARD SPECIFICATION FOR ALLOY STEEL BOLTING FOR HIGH TEMPERATURE OR HIGH PRESSURE SERVICE MATERIAL: ALLOY STEEL A193 B7 (ANSI 414 DIMENSION: IFI-136 THREADED STUDS FINISHING: BLACK HOT DIP GALVANIZED Main productsHex head boltDIN931,DIN933,DIN960,DIN961,ISO4014,ISO4017 Heavy hex boltDIN6914,DIN7990,ASTM A325,ASTM A490 Hex nutDIN934,DIN6915,ASTM A194 2H,ASTM A563 WasherDIN125,DIN127,DIN6916,ASTM F436 Stud boltDIN975,ASTM A193 B7 StandardDIN, ISO, ANSI, ASME, BS, AS, JIS and non-standards http://www.hualongfasteners.com/hex-bolt/