These plastic conical anchors are intended for light duty anchoring applications and offer extra support for loads. Once installed, they provide a flush, clean appearance in drywall. The anchor's fins prevent the anchor from turning in the hole during and after installation. The split in the anchor ensures three way expansion on sides for increased holding power. Used with sheet metal, wood and lag screws in hollow walls. Can be used in light masonry or masonry block applications. Requires a pre-drilled hole for installation.