Single expansion anchor

There are 2 kinds of expansion anchors, single expansion anchors and double expansion anchors. Expansion anchors are used in soft masonry and materials of questionable, like brick or stone. Made of a zinc alloy, expansion anchors are rustproof. The screw or bolt can be removed from the anchor if necessary and replaced while maintaining holding power. Double expansion anchors have 2 ends that, when expanded, hold in place using the full length of the anchor body.

   Installation Guide

1. Using a masonry bit with a diameter which equals the anchor diameter and meets ANSI SPECIFICATION B212.15-1994, drill a hole slightly deeper than the anchor length.
2. Clean hole thoroughly of debris using compressed air or a blow out bulb.
3. Insert the expansion anchor into the hole, nut end first, and hammer the anchor down untilit is flush with or slightly above the surface plane of the concrete.
4. Insert bolt through fixture, and tighten until anchor is set. The bolt should be the same length as the anchor plus the thickness of the material being fastened.

double expansion anchors