Plug welds and slot welds are identified by the same symbol, except

Plug welds and slot welds are identified by the same symbol, except plug or slot weld To enable thicker plate to be joined by 'spot welding' a circular or elongated hole may be machined through the top plate, enabling either a plug or a slot weld plug slot weld Plug, slot, and spot weld; J-groove weld; Flare-bevel groove weld; Bevel-groove weld Edge Joint Welding The metal surfaces are joined together

plug slot weld plug weld is its diameter whereas the size of a slot is its width They may be completely filled or filled to a depth specified within the weld symbol See

plug weld vs slot weld So it's a slot & tab assembly ? the weld cap instruction over top of the symbol No sin in adding words in a note next to the weld, main point Plug Weld or slot weld: It is used for attaching flat plates using one or more holes or slots in the top part and then filling with filler metal to fuse the two