Welding weldnuts in 1/4" thick tubing

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What amperage should I use to weld the weldnuts in place in the tubing so they don't get welded to hot or not hot enough, they are used as permanent nuts on truck scale end tubing when the original hole strips out that the gap covers bolt down onto.
Reply:More info is needed.
Reply:1.21 Gigawatts  1st on WeldingWeb to have a scrolling sig! HTP Invertig 400HTP Invertig 221HTP ProPulse 300HTP ProPulse 200 x2HTP ProPulse 220MTSHTP Inverarc 200TLP HTP Microcut 875SC
Reply:why do you want to weld your nuts to tubing..that could hurt....Of all the things I lost I miss my mind the most...I know just enough about everything to be dangerous......You cant cure stupid..only kill it...
Reply:Originally Posted by ScaleManWhat amperage should I use to weld the weldnuts in place in the tubing so they don't get welded to hot or not hot enough, they are used as permanent nuts on truck scale end tubing when the original hole strips out that the gap covers bolt down onto.
Reply:Originally Posted by Oscar1.21 Gigawatts
Reply:What size nuts ?   They do make EXTRA HEAVY NUTS which is what I normally use .
Reply:From the thread in the center of the nut to the outside edge is about 3/8" thick and the weld nut is about one inch tall, the tubing is 3" wide and 6" tall and 1/4" thick
Reply:It would be easier to say that it's a 5/8 or 3/4 nut.
Reply:Originally Posted by ScaleManFrom the thread in the center of the nut to the outside edge is about 3/8" thick and the weld nut is about one inch tall, the tubing is 3" wide and 6" tall and 1/4" thick
Reply:Originally Posted by motolife313What are you welding with? And don't forget to clean the nut out with a tap.
Reply:I remember mikegyver say not to do that. I used to also. Somtimes when you don't think it needs to be taped but when you stick the tap in there and it starts cutting your glad you did. I'll put the bolt in to take it and make sure its lined up if there's a hole. I think if the thread is finer it's more important to chase it. I jacked up a .5/20 thread from not chasing it. Oil would have helped but I didn't oil the bolt either. The bolt got so tight it there it was rediculas it was scretching like no other lol . I finally got it out and it was all jacked up but I managed to save the nut by taping it. I could spin the bolt in no problem by finger after that. Taps and dies do wonders
Reply:If possible, tighten the nut onto a bolt from the inside. That'll secure the nut in place, perfectly over the hole and protect the threads. Back the bolt out after welding. Worked great on my grinder stand because the pipe was 2.5" and near the end.Be wary of The Numbers: Figures don't lie,. but liars can figure.Welders:2008 Lincoln 140 GMAW&FCAW2012 HF 165 'toy' GTAW&SMAW1970's Cobbled together O/A
Reply:Weld nuts are already heavy nuts. They're designed to protect the threads from the weld. At least the weld nuts I use... Which look like large hex nuts. Since you're specifying what amperage, I'm assuming your stick or TIG welding? Set the welder to weld the thickest material in this case. If you're going to put a bolt in the nut to protect the threads, make sure the bolt does not protrude past the other side of the nut. If you get a little spatter or mess up that end of the thread, you'll have a heck of a time getting that bolt out without messing up the nut.John 3:16(2) Miller Pheonix 456(2) Millermertic 252Dynasty 210DXHobart 210MVPDoringer D350 SA Cold SawScotchman 350LT Cold SawWebb 10x50 MillWebb 15x40 LatheGeka Bendicrop Ironworker