What type of duty are nail-in anchors?

• A. Light duty
• B. Medium duty
• C. Heavy duty
• D. Extra heavy duty

Answer: (A)

Nail-in anchors are designed for light-duty applications. They rely on a driven nail to grip the base material rather than using expansion or a mechanical grip, so their withdrawal and shear capacity are limited. For small, non-load-bearing or very light loads, they’re quick and easy to install, which is why they’re classified as light duty. For heavier or dynamic loads, stronger options like expansion or wedge-type anchors are needed, which is why the other duty levels don’t fit.