COBRA ANCHORS 321C Drop-In Anchor, 1146 lb, Steel, Zinc

The drop-in anchor is a two-step installation anchor that expands using a setting tool. It has a female internal thread that accepts standard UNC threaded rods from 1/4 to 3/4 in and it installs flush. The drop-in anchor is made of sturdy steel and requires an expansion tool for its installation.