Drop In Anchor/brass drop in anchor/dropping anchor Materials:Carbon Steel,Stainless Steel,Brass ... zinc/white zinc,Yellow zinc Perfect expansion and specially designed built-in plug ensures full expansion of anchor. The test values listed ... cm2concrete(no aggregated).Other Used Names:Drop-in, dropin, female anchors, drop-in anchors, concrete drop in anchors, thunderdrop, multi-set concrete anchors ...