We have assembled a huge range of weld on fittings to make the job of fabricating a tank, radiator or your speciality job a breeze. When you are fabricating you donât have the time to search for the right part, that is why we have this complete range available right off the shelf! 990-04-D 990-06-D 990-08-D 990-10-D 990-12-D 990-16-D 990-06-S 990-08-S 990-10-S 990-12-S 990-M12-D 990-M14-D