How does a slot weld differ from a plug weld?

How to calculate the shear stresses in bevelled slot welds connecting two plates References: “Steel Design for Engineers and Architects”, 1992:

For example the code where I am the requirment for a slot weld is the opening must be 5 the thickness of the plate but no less then 58 wide

slot deposit 5ribu This document defines plug and slot welds and discusses how they are represented in welding symbols Plug welds use a round hole while slot

slot tegning weld safety must be multiplied by the ratio of lengths L'L'' Plug and slot welds Plug and slot welds are usually used for lap joints They are not