These Rawlplug Rawlbolt® Loose Bolts have the following specification: Anchor Diameter: 10mm External Diameter: 16mm Length: 90mm Fixture Max. Thickness: 25mm Hole Diameter: 11mm Hole Diameter in Substrate: 16mm Installation Torque: 27 Wrench Size: 17 Min. Hole Depth in Substrate: 65mm Min. Installation Depth: 60mm Min. Substrate Thickness: 100mm Min. Spacing: 50mm Min. Edge Distance: 75mm Pack Quantity: Bag of 5 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. RawlplugA04B2053