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Also please bear in mind that the hole that you drill in the item being fixed should be the same diameter as the concrete bolt – so if you are using a 12mm diameter bolt, you will still need a 12mm drill to penetrate the item that is being fastened before using the 10mm drill for the substrate. We offer a wide range of stainless steel concrete bolt size options, all featuring a zinc-plated finish. It is important to note that concrete bolts are not to be confused with concrete screws. The latter is another type of heavy-duty fixing that feature a countersunk head and a sharp point. Using Concrete Bolts We always suggest drilling a slightly deeper hole than the fixing length required to allow any dust and debris to gather at the end.
At Tradefix Direct, we are one of the UK’s leading distributors of anchor bolts from known and trusted trade brands such as Fischer, Timco, JCP, ForgeFix, and more. These come in many diameters, lengths, and sizes from M10 through bits to M24. You can also choose from a variety of finishes including zinc plated, galvanised, and A4 stainless steel anchors.You can use self tapping concrete screws to attach furring strips, conduit clamps, electrical boxes or more. To install screws into concrete, you should drill a pilot hole with an appropriately sized drill bit, and drive the concrete screw into the substrate with a high-power screwdriver. The large profile threads of the concrete screw will assist with this.