... anchors (heavy duty anchors, wedge anchors, sleeve anchors, drop-in anchors, ... spring toggles, gravity toggles, nylon wall plug, steel wall plug, nylon frame anchors, metal frame anchors, bolt ... Drop-In Anchor 1.Non-knurling Drop-in anchor2.Knurling drop-in anchor3 .Half knurling drop-in anchor.4.stainless steel non-knurling drop-in-anchor5. brass drop-in ...