This stress-free, non-expansion through fixing is the new solution for heavy-duty anchoring into concrete, brick, stone, wood, and concrete block, replacing the need for traditional anchors such as throughbolts, shield, sleeve, and drop-in anchors. Features a countersunk head for a flush finish. TIMCO micro-plating technology provides higher resistance to corrosion and enhances installation speed. High-Low parallel threads ensure ease of insertion and high pull-out values. This is a removable & adjustable non-expansion through-fixing with a unique concave thread configuration. The countersunk head provides a discreet finish into pre-countersunk holes. It is an all-steel, non-flammable fixing conforming to BS 7671 standard's 18th edition, which requires wiring systems to be supported by materials unlikely to prematurely collapse in the event of a fire. Thread Diameter: 8.0 mm, Length: 100 mm, Recess Type: TX Drive, Head Type: Countersunk, Finish: Exterior (Silver Organic), Drill Hole Diameter: 8.0 mm, Fixture Hole Diameter: 10.0 mm, Max Fixture Thickness: N/A, Min Drill Hole Depth: N/A. Size 8.0 x 100/M10.