B8M Stud are stainless steel studs that are commonly used in pipe flange connections.  We sell 6 foot lengths but can also cut to your required length.  ASTM A193    Grade B8M bolts are made from a more corrosion-resistant type 316 stainless steel.   Thread = 8 TPI for diameters larger than 1"  A Certificate can be requested at the time of ordering.