A Guide to Weld Symbols in the UK

The number of plugs or slots is given in parentheses above or below the weld symbol The arrow-side and other-side designations indicate which piece contains

Plug welds carry their necessary information entirely on the weld symbol Slot welds carry some information on the symbol

plug slot The plug weld symbol is a simple rectangle It is used on welding diagrams to indicate where a plug weld is needed and what size it should be

plug or slot weld symbol The symbol for both plug welds and slot welds is a rectangle drawn on the reference line The arrow line should touch the centreline of the weld joint Detailed