About Plug Welds

Welding Symbols and How to Read Them plug and slot weld symbol Plug, Slot, Arc Spot, Arc Seam, Resistance Spot, Resistance Seam and Projection For these symbols, the arrow connects the welding symbol reference line to the plug and slot welds Parentheses located above or below the weld symbol contain the number of plugs or slots The arrow-side and other-side designations indicate

plug or slot weld symbol Root Face ELEMENTARY WELD SYMBOLS Single U Groove Weld Single J Groove Weld Back Weld Fillet Weld ELEMENTARY WELD SYMBOLS Plug Slot Weld Spot Weld