Sleeve anchors are versatile fasteners used to secure a wide variety of materials to concrete, brick, and other masonry substrates. The bolt head of a sleeve anchor is an important consideration, as it determines the type of tool required for installation and the level of finish provided. There are several types of bolt heads for sleeve anchors, including hex head, round head, and flat head. Hex head sleeve anchors have a hexagonal head that requires a wrench or socket to tighten, providing a secure and tamper-proof installation. Round head sleeve anchors have a slightly rounded head that provides a finished appearance but may not offer the same level of security as hex head anchors. Flat head sleeve anchors have a flat head that sits flush with the surface of the material being fastened, providing a clean, low-profile finish. When selecting a sleeve anchor bolt head, it is important to consider the application and the desired level of finish. Hex head anchors are ideal for high-security applications or where tamper-proof fastening is required, while round head and flat head anchors are suitable for applications where appearance is a concern.