Slot Welding Symbol Explained

Everything You Need to Know on Welds, Symbols, and Positions plug and slot weld symbol Double-U butt weld Flat single-V butt weld with flat backing run Fillet weld Convex double-v weld Plug weld plug slot Plug and slot welds; Spot welds and seam welds; Groove weld symbols; Backing, back, melt-thru and surfacing symbols; Edge weld and combination weld symbols

plug weld vs slot weld The symbol decodes to: far side is a slot or plug weld and near side as a bevel weld I doubt that whomever created it is familiar