Miscellaneous Fixings for Interior Design
Toggle Bolts or Spring Toggles – are an alternative to fixings with collapsible sleeves and two metal arms that fold against the screw allowing it to be pushed into the hole.
The arms then spring open on the other side of the sheet, tightening against the sheet as the screw is turned. These are used to fasten materials to plaster, gypsum boards or other thin wallboards.
They work by distributing the pulling load over a greater surface area similar to a washer but able to be collapsed to get through the hole.
Other forms may include, fixings with collapsible sleeve, which consist of a plastic sleeve that the screw is inserted into after the sleeve has been inserted through the hole. The screw will expand the sleeve on the other side of the hole to allow the screw to brace against the opposing side of the sheet you are fixing to.
Wall plugs are similar but rather than going right through the wall they are used to partially fill the hole and expand upon a screw being screwed into them, gripping against the sides of the hole. Some newer forms are called drive nails, which in principal work the same as wall plugs but use a hammer and nail as opposed to screw and screwdriver.
Different Types of Wall Fixings
Masonry Anchors/Expansion Shields – are used to hold materials to plaster gypsum board, brick and concrete block or concrete walls or floors.
Metal Framing Connectors – are used to connect timber members together. E.g. framing. Gangnail systems are a variation of this system. They may also be used to connect to masonry or concrete. They are a great deal stronger than using a simple nail system.
Types of Wall Plugs
Timber Connectors – are used to distribute a load over a larger area of the timber in heavy frame construction and construction of trusses.
Rivets – are used to permanently join structural steel members or sheet metal to steel frames. They aren’t used as much today as in the past, having now been largely superseded by welding.
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