Also called Drop-in, drop in, female anchors, drop-in anchors, concrete drop in anchors, thunder drop, multi-set concrete anchor Description1. Product name: drop in anchor, concrete drop in anchor, drop in, female anchors, thunder drop, multi-set concrete anchors. 2. Material: carbon steel, stainless steel3. Finish treatment: white zinc plated, yellow zinc plated.4. Size: both metric and inch ...