Various Types of Welding Joints and Their Uses

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

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

slot of madness TIG welding is selected for plug welding because it offers the greatest flexibility to weld the widest range of materials, thicknesses, and types The base

slot gaat niet open met sleutel Plug and slot welds are usually used for lap joints They are not suitable for the transfer of high forces and are especially not suitable for dynamically