I frequently see steel-framed buildings using light-gauge (viz. purlin type section) frames, having welded connections at the maximum moment points, ie. knee (column to rafter) and apex of a hipped roof.
It's my understanding that the heat of welding generally speaking destroys the high tensile...
This seems to be one of those "am I the only guy who doesn't know this" questions.
I've tried quite hard to locate an explanation behind the 'code' which identifies screws, in particular TEKS types, those self drilling ones.
For example a teks screw can be described as 14-20x22 plus a few other...
