Sleeve anchors are designed for fixing into brickwork, blockwork and concrete. This all metal-anchor is a through fixing which enables the hole to be drilled through a pre-positioned fixture, saving time and money. Ideal in lighter weight situations. Supplied in zinc plated finish. Similar factors to throughbolts must be taken into account when selecting sleeve anchors with special care taken near brick edges, tops of walls etc. With protruding male thread and loose nut.