Quote:
Originally Posted by GMKlenklen
Hey... what's the strongest fastener for most joints?
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Of all the options available for securing one piece of 80/20 extrusion to another, the corner anchors are the strongest; however keep in mind that you need a milling machine to bore these end holes. Team 228 used 80/20 extrusion frames from 2003-2006 and these corner anchors from the 80/20 catalog - although slightly on the heavy side in the weight and budget departments - were crucial to making these frames work.
I would also advise against welding 80/20 into a frame, as it its almost a self defeating measure. (Also, welding 80/20 would make it impossible to get additional component slide-ins into or out of the extrusion channel. Your only option would be the drop-ins, which are less preferable to slide-ins for mounting crucial components like transmissions or pillow blocks.)