XBolt Hex Head Concrete Screw Anchor, Zinc Yellow Passivate: Sizes, Loads and Torque

Key things to remember

The essentials from this document in plain words. Check the full document before you rely on a figure.

• ✓A one-piece screw anchor for solid concrete. It taps its own thread as it is screwed into a drilled hole, suits small spacing and edge distances, takes medium to heavy loads and is fully removable.
• ✓Sizes M5 to M20: M5 x 30 and 50, M6 x 30 to 100, M8 x 50 to 100, M10 x 60 to 150, M12 x 75 to 150, M16 x 100 and 150, M20 x 150 and 200. The installation and load tables start at M6.
• ✓Hole diameter equals the anchor size. Minimum embedment: M6 25mm, M8 40mm, M10 50mm, M12 55mm, M16 65mm, M20 90mm. Minimum spacing and edge distance: 40mm (M6, M8) up to 100mm (M20). Wrench size 10mm (M6) to 27mm (M20).
• ✓Working load in tension in 32MPa non-cracked concrete, with safety factors of 3.0 on concrete and 2.5 on steel already included: from 1.3kN (M6 at 25mm embedment) to 30.7kN (M20 at 130mm). For example M12 at 90mm 13.6kN, M16 at 100mm 15.5kN.
• ✓Working load in shear, same conditions, rises with edge distance. M12 at 70mm embedment: 3.6kN at 60mm from the edge, 12.6kN at 150mm. M20 at 115mm embedment: 8.8kN at 100mm, 29.2kN at 250mm.
• ✓Maximum installation torque in 32MPa concrete: M5 10Nm, M6 15Nm, M8 45Nm, M10 55Nm, M12 80Nm, M16 100Nm, M20 140Nm.
• ✓Listed uses: hand rails, formwork support, mechanical, electrical and pipe brackets, bottom plate fixing into concrete slabs, and pallet racking.

Who it helps: Builders, racking and services installers fixing to concrete, and engineers checking design resistances.