weldolet threadolet sockolet flangeolet elbowlet nipolet letrolet swepolet MSS SP-97 Integrally Reinforced Forged Branch Outlet Fittings - Socket Welding, Threaded and Butt welding Ends Size 1/8’’~24’’ for weldolet Size 1/8’’~4’’ for sockolet and threadolet Class 3000LBS 6000LBS Stainless Steel: Stainless ASME SA-182 ASTM A182 F304, F304L, F304H, F 304N, F304LN, F316, F316L, F316H, F316N, F316LN, ...