Hilti 1/2 in. x 4 in. Galvanized Steel Hex-Nut-Head Sleeve Anchors (5-Pack) are suitable for medium-duty fastening jobs in block, masonry and concrete base materials. The stud-type anchor design provides easy, dependable through-type fastening performance and allows these anchors to be set in bottomless holes. Anchor size is the same as the drill bit size. Get started on your light-duty anchoring job today with these Hilti anchors.