Ideal heavy duty fixing for roller shutter doors, fire doors, steelwork, security grills, machinery, pipework-duct work supports. Suitable for concrete, brickwork and stone. Pressed steel segments ensure consistent dimensional accuracy. Optimum taper nut angle for maximum expansion in all substrates. Available in a range of sizes. The Rawlplug Rawlbolt Loose Bolt is suitable for use in cracked and non-cracked concrete (ETA option 1), hollowcore slabs, flooring blocks and ceramics. Recommended for applications requiring fire resistance. With a three-piece expanding sleeve of maximum expansion to provide optimal load and safety of use in any substrate. The world's most popular all-purpose expanding shield anchor, loose bolt version. Anchor Diameter: 6mm External Diameter: 12mm Length: 55mm Fixture Max. Thickness: 10mm Hole Diameter: 6.5mm Hole Diameter in Substrate: 12mm Installation Torque: 6.5 Wrench Size: 10 Min. Hole Depth in Substrate: 50mm Min. Installation Depth: 45mm Min. Substrate Thickness: 100mm Min. Spacing: 35mm Min. Edge Distance: 53mm Pack Quantity: Bag of 5.