The spring loaded metal wings make this an excellent choice for overhead mounting. Photo below shows an expansion anchor [top] and a toggle bolt not yet tightened. If you enjoyed this post, make sure you subscribe to my RSS feed!
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You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience. JavaScript seems to be disabled in your browser. For the best experience on our site, be sure to turn on Javascript in your browser. A Hollow Wall Anchor is designed to provide a secure fastening into hollow cavity walls such as plasterboard or plywood.
The body of the anchor remains securely fixed in the wall even if the screw is removed. This provides an ideal fixing point for fixtures requiring periodic removal, such as shelving, curtain fixtures and light fittings. Please see attached table on each item for grip range, drill size and hole depth.
The housing of the anchor has 4 flaps which are dented in the middle. The flange has 4 sharp teeth facing towards the flaps which are to be embedded into the plasterboard.
The neck is the cylindricalpart below the flange which is the grip size of the anchor. The It works on the similar principle as a pop rivet. You drill a hole put the anchor through the hole with the flaps inside the hole. It is difficult to fix anything to a plasterboard as its hollow and comparatively soft. You must find a stud behind the wall and use a timber screw but that limits you and its difficult to find the stud as well. The hollow wall anchors are extremely easy to use and are very handy for light duty fixes.
It can also be used with high-density exterior sheathing and for bathtub attachments, countertops, flooring applications, and more. Be sure to look for corrosion-resistant fasteners.
Expansion anchors, also called wedge anchors, are used with concrete, masonry, and more. They're designed to spread open once they're anchored, thus their name. This provides a stronger hold. The three basic styles of wedge anchors are fully threaded, partially threaded, and the full-bodied wedge anchor.
Plastic expansion anchors are the most commonly used anchor type. The more heavily "ribbed" anchors will give the greatest gripping strength regardless of the wall material. Hollow wall anchors are used for medium-duty applications. They'll normally add permanent screw threads to any material to which they're attached.
These types of anchors also expand as the screw is tightened and driven into the cavity. This anchor can be installed using a hammer or a drill and can be used with various wall thicknesses. These anchors are also sometimes known as Molly bolts, and their maximum holding load is about 50 pounds.
Plastic hollow wall plug anchors require that you first drill a pilot hole. They're normally used in drywall or plaster for light-duty applications. When the screw is installed, the plug will expand and lock into place. This type of anchor is recommended for medium-duty applications and is very easy to install.
These anchors can be plastic, nylon, or zinc-coated. One of the best advantages of this type of anchor is that it can be removed and reused at another location. The threads cut deep into the material, providing a secure hold and pull-out resistant grip.
The large threads are intended to hold firmly in drywall and will accept 6 or 8 sheet metal screws. Toggle bolts are the traditional anchor method. This type of anchor has two parts: the toggle and the machine bolt. Toggle bolts are sized by the diameter of the screw and its length.
As the bolt becomes larger, the toggle will also increase in size, and as it gets longer, the more it can accommodate a thicker wall. Toggles can be the preferred solution for heavy items and are available in both square and slot-drive. They require a pilot hole, and the wings that lock into place behind drywall provide strong holding power. Winged plastic anchors are used for medium-duty applications and require pilot holes as well. A special tool is used to expand the wings after the anchor has been inserted.
They offer twice as much strength as regular plastic expansion anchors. A special pointed tool is supplied with the anchor to push the center of the wings out so that they properly expand inside the wall.
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