This connection details a hollow structural section (HSS) beam framing into another HSS beam utilizing three-eighths inch thick fitted stiffener plates on each side of the supported member. A three-quarters inch diameter by one-and-three-quarters inch welded threaded stud with nut and washer secures the assembly at the bottom flange. Five-sixteenth inch fillet welds attach the stiffener plates and connection components on both sides, with a specified half-inch hold weld back at the corner.
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