The Confast flat-headed sleeve anchor is an expansion-type anchor that works by turning the flat head clockwise, which pulls the cone shaped internally threaded stud upwards and expands the sleeve ...

Sleeve anchors - one kind for brick and block, another for concrete - come in different lengths as well. When drilling the hole for a 1/2-inch sleeve anchor you actually drill a 1/2-inch hole.

A sleeve anchor's diameter is designated as the outside diameter of the sleeve anchor. The thread size that is inside of the sleeve is smaller: a 3/8" anchor has a 5/16" diameter threaded bolt.

Hollow-wall anchors come in a wide range of sizes and styles for use on virtually any wall, including drywall, plaster, and even hollow concrete block. Here's a detailed look at my four favorite ...