Slot Welding Symbol Explained

Blueprint Reading Chapter 15 Plug and Slot Welds plug weld vs slot weld Plug and slot welds are expressly prohibited in certain codes for reasons others have already mentioned In terms of cost, field bolted plug and slot weld Plug welds and slot welds are identified by the same symbol, except that the plug weld symbol has a diameter symbol placed on its right side

plug or slot weld The only difference is that a plug weld's shape is defined by a diameter, and a slot weld's shape is defined by a diameter and a length 1