A weld symbol representing the parameters you specify is created automatically when you:
Create a weld bead component in an assembly.
Add a fillet bead to a weldment structure in a part.
You can also construct weld symbols independently in a part, assembly, or drawing document. When creating or editing a weld symbol, you can:
Add secondary weld fillet information to the weld symbol for certain types of weld (Square or Bevel, for example).
Choose a Leader anchor of None.
Choose the text font for each weld symbol.
To insert a weld symbol:
Click Weld Symbol 
on the Annotation toolbar, or click Insert,
Annotations, Weld
Symbol.
The Weld Symbol Properties dialog box appears for ISO, BSI, DIN, JIS, and GB standards. Different dialog boxes appear for ANSI and GOST standards.
Type in values and select symbols and options. A preview is displayed.
Click a face or edge where you want to indicate a welded joint. If the weld symbol has a leader, click to place the leader first, then click to place the symbol.
If you selected a face or edge before you clicked Weld
Symbol , the leader is already placed; click once
to place the symbol.
Click as many times as necessary to place multiple weld symbols.
Click OK.
To edit a weld symbol:
Double-click the symbol.
- or -
Right-click the symbol and select Properties.