Drop-In Anchors
Drop-in Anchors are a versatile yet often under-considered anchoring solution. The Drop-In anchor is a simple, cylindrical, female threaded fixing which works by utilising an internal expanding wedge which is activated by using a setting tool. Drop-in anchors can be used in a variety of sound masonry materials such as concrete and stone.
The term drop-in is derived from the anchor’s main use as a ceiling anchor from which threaded rods are suspended. It is common for these drop rods to be used for suspending electrical cable tray installations, Unistrut and channel systems along with heating and ventilation equipment.
As the anchor features a female thread it allows for any threaded fixing such as a machine screw, set screw or stud to be inserted. This is a very useful feature of these anchor as the user is not limited to the usual hexagon headed bolts that are commonly found on other fixings such as shield anchors, sleeve anchors and through bolts.
Despite the name ‘Drop-In’ these clever anchors can also be installed in concrete floors using countersunk machine screws giving a neat, flush finish in fixing plates which have been pre-drilled with a countersunk hole. As Drop-In Anchors sit flush or sometimes just below the top of the installation hole – if an item that has been fixed using this type of anchor needs to be removed or repositioned it simply requires the removal of the bolt from the fixing. This leaves the anchor in place but not visible.
Installation depths are just a few millimetres longer than the anchor itself allowing for shallow embedment depth which reduces the chance of making contact with rebar embedded in concrete. Drop-in Anchors with a lip at the top are also available which ensures every anchor is set to the same consistent depth; this is ideal when drop rods are being installed in multiples and the same hanging length of the rod needs to be achieved. Don’t forget, the setting tool is an essential piece of equipment to make the installation successful and it’s stocked at Protrade along with a range of different sizes of Drop-In Anchors.
Order your Drop-in Anchors before 5pm and it will be despatched that day ready for you to use the next working day. Or, click and collect from your local depot in Derby, Nottingham, Chesterfield, Mansfield or Burton.
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