A Wedge Anchor Fastener is a fully threaded stud-type expansion anchor that consists of four parts: threaded anchor body, expansion clip, nut, and a washer. They are designed to fix objects with concrete surfaces only. Any porous material will crack during expansion due to the associated shear stress.
These fasteners use a simple friction lock mechanism. Once a wedge anchor is properly inserted into the hole, the nut is rotated clockwise. This causes the anchor body to move up and the expansion brackets to slide down along the working conical end of the wedge anchor.
As a result, the anchors expand in diameter and, due to friction, couple the base material firmly. Pressfit Wedge Anchors are manufactured in a variety of sizes to support all types of applications.
The first step in installing a wedge anchor fastener is to drill a hole of specified embedment depth and size that matches the dimension of the fastener. This can be done using a hammer drill with a carbide bit equal to the diameter of the anchor to be installed.
The drilled hole must be cleaned to ensure that the hole is large enough for the fastener to be easily inserted. Make sure that the supplied nut and washer are placed on the top end to avoid damaging the threads during insertion. Enclose the object to be placed between them and the mounting surface.
Tap the fastener with a hammer until the nuts and washer are tightened against the fixture. Next, tighten the supplied nut so that the bottom part expands its diameter until it gets affixed with the application surface.
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