A hollow-wall anchor that rips out under load costs you the job — drywall holds nothing on its own, and a standard expansion anchor needs solid material behind it. Toggle bolts are the answer when there's nothing but air behind the wall: the spring-loaded wings fold flat to pass through the hole, then snap open on the far side to distribute load across the backing surface. The 5/16-18 thread size handles medium-to-heavy duty — heavier mirrors, large bathroom vanities, ceiling-mounted storage racks. Requires a 1/2-inch hole — plan your installation accordingly. 3-inch bolt length gets through standard wall cavities. 25 bolts per box means you won't run short on the job. Standard on the truck runs of finish carpenters and remodelers across northeast Nebraska and northwest Iowa — the crews th Stocked at Crofton Lumber and Akron Lumber.