On a plug weld, where is the depth of filling indicated?

On a plug weld, where is the depth of filling indicated?

• A. Left of the weld symbol.
• B. Below the weld symbol.
• C. On the right side of the weld symbol.
• D. Inside the weld symbol.

Answer: (D)

For plug welds, the depth of filling is a detail that belongs directly to that weld callout, so it is shown inside the weld symbol itself. The circle in a plug weld indicates the hole or plug, and the depth value placed inside the symbol specifies how deep the weld material should fill the hole. Placing this dimension inside the symbol keeps it unambiguous and tied to that specific weld, regardless of how the symbol is read on the drawing. Other locations aren’t used for this purpose because the left, below, or right sides of the symbol are reserved for other dimensions or for different weld types. Keeping the depth of filling inside the symbol ensures it isn’t confused with hole diameter, length, or other callouts.

For plug welds, the depth of filling is a detail that belongs directly to that weld callout, so it is shown inside the weld symbol itself. The circle in a plug weld indicates the hole or plug, and the depth value placed inside the symbol specifies how deep the weld material should fill the hole. Placing this dimension inside the symbol keeps it unambiguous and tied to that specific weld, regardless of how the symbol is read on the drawing.

Other locations aren’t used for this purpose because the left, below, or right sides of the symbol are reserved for other dimensions or for different weld types. Keeping the depth of filling inside the symbol ensures it isn’t confused with hole diameter, length, or other callouts.