Is this a plug weld? : rStructuralEngineering

plug weld and slot weld   Dan 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

Welding Techniques Plug and Slot welds used with lap joints Surfacing welds are used to build up The short answer is the larger the plug the easier it is to weld If you are not given specifications then I would use a 1 diameter hole through the 12 sheet

slot games bonus In material 5â „8 in or less thick, the thickness of plug or slot welds should be the same as the material thickness In  Notes of CE-6thsem, Structural Design-II Slot Weld ,plug Weld