Anchor Bolts in Dubai

Foundation bolts (J-, L- and straight bolts with a plate or hook) are cast into fresh concrete for columns, base plates and machinery. Wedge anchors expand against the wall of a drilled hole when tightened and suit heavy-duty fixings in hardened concrete. Sleeve (shield) anchors are lighter-duty expansion anchors. Drop-in anchors are set flush with the surface and take a threaded bolt or rod. Chemical studs bond a threaded rod into the hole with resin for high loads or close-to-edge fixings.

The decision depends on the load (tension, shear or both), whether the load is static or vibrating, the concrete strength and whether it may crack, the edge distance and spacing between anchors, and the corrosion environment. Check the manufacturer's data for embedment depth and rated loads — never rely on the bolt size alone.

Drill to the specified diameter and depth, clean the hole thoroughly of dust, place the anchor to the correct embedment depth and tighten to the recommended torque. Poor hole cleaning is one of the most common reasons anchors do not reach their rated load, especially for chemical anchors.

In humid or coastal conditions choose hot-dip galvanised or stainless steel anchors. For interior dry locations, zinc-plated anchors are normally enough. If the anchor will be exposed to chlorides (such as pool areas or the coast), stainless 316 is preferable.