Stainless Steel Concrete & Stone Drop in Female Expansion Anchors with Setting Tool 3/4'-10 x 3-1/8' Qty 10

304 Stainless Steel Drop In Masonry Anchors with Matching Setting Tool. Each pack contains one setting tool designed to set the size of anchor. Corrosion and rust resistant 304 Stainless Steel Drop In Anchors. Installed with the crimped side down in a pre-drilled hole, then secured with the included tool. Internal threads for attaching fixtures to concrete with bolts or machine screws