Expansion Screw Anchor Anchor Diameter 1 1/4 in Overall Length 2 1/4 in Screw Size 3/4 in Thread Size 3/4 In.-10 Thread Type Coarse Material Zamac Alloy Finish Plain Drill Bit Size 1 1/4 in Minimum Installation Depth 2 1/4 in System of Measurement Inch Expansion Anchor Type Caulking Anchor Material Grade/Class Not Graded Compatible Material Block Brick Concrete Stone Installation Method Expansion Screw Manufacturer Location Globally Sourced Bolt or Rod Size 3/4 in