Question on spot welding using Clecos

[iwlbcnu]

Putting the floors in my Bronco and drilled 1/8 holes for Clecos, now they don't look big enough to get a good weld. Whats the trick? I would think you would want at least a 3/8" hole in the top panel.

 

[allenfahey]

The top piece should only have holes in it. Use the Cleko's to hold in place. 3/8" is fine but the underlying metal should be bare steel, no holes, and have a light coating of weld thru primer on it. Every 4" or so should have a weld. The best way is a spot welder but you will be fine with the mig. Apply 2K primer, sand then seam sealer on both sides.

 

[iwlbcnu]

So you don't use the Cleco holes for the welds, just to hold in place, and then extra just for weld holes. Makes sense.

 

[Nightmare Bronc]

I used Clecos to hold metal in place. I drilled 3/16 holes in the top piece of metal to weld it to bottom piece. Some places I used hex head self tapping screws to pull floor down good.

 

[bosshoff]

When welding, I have had a hard time getting enough clamping pressure using clecos.