Which anchor is described as a drop-in anchor?

Which anchor is described as a drop-in anchor?

• A. Split fast
• B. Lead anchors
• C. Stove bolts
• D. Drop-in

Answer: (D)

A drop-in anchor is a type designed to be placed into a predrilled hole in concrete, then expanded from inside by driving a setting tool or pin as you tighten a bolt. The expansion presses the outer sleeve against the walls of the hole, creating a secure grip for the threaded fastener and leaving a clean surface. That installation method—drop it in first, then expand from within—is why the anchor described as drop-in is the correct choice. The other names refer to different anchoring systems: split-fast (a split expansion style), lead anchors (an older lead-based type), and stove bolts (a type of fastener, not an anchor).

A drop-in anchor is a type designed to be placed into a predrilled hole in concrete, then expanded from inside by driving a setting tool or pin as you tighten a bolt. The expansion presses the outer sleeve against the walls of the hole, creating a secure grip for the threaded fastener and leaving a clean surface. That installation method—drop it in first, then expand from within—is why the anchor described as drop-in is the correct choice. The other names refer to different anchoring systems: split-fast (a split expansion style), lead anchors (an older lead-based type), and stove bolts (a type of fastener, not an anchor).