Which drywall or hollow wall anchors are rated for heavy duty?

Snap type toggles are designed for heavier loads than many other wall anchors, making them suitable for heavy-duty applications. They function by using a spring-loaded mechanism that locks into place behind the wall surface. When the anchor is inserted, the wings of the toggle expand, which distributes weight across a larger area of the wall. This design helps prevent pulling out under load, thereby providing a strong and secure hold suitable for hanging heavy items.

While other types of anchors may support significant weight, they often have limitations based on the wall material or specific design intended for lighter loads. Plastic anchors generally support lighter items, wedge anchors are primarily used in solid materials like concrete, and toggle bolts, while strong, may not have the same capacity as snap type toggles when factors like wall thickness and material are considered. The versatility and robust holding capacity of snap type toggles make them preferable for heavy-duty tasks.