Hi All, I know "Google" is supposed to be my friend, but not this time. I am looking for replacement tips for a 23 Watt (Model 535-S) heating element. The TIPS themselves would have threads. Most places I have found on Google only want to sell the entire heating element, which I have, but don't have the replacement tips! I can't believe it is so hard, and I don't want to but a lot of 100. I believe Weller may have bought Ungar at some point, but local stores (F**'s) only have Weller replacement parts, which don't fit; they are too large. Does anyone know where the proper Ungar tips can be obtained? It shouldn't be so difficult.