Expansion Screw Anchor Anchor Diameter 3/8 in Overall Length 5/8 in Screw Size #10 Thread Size #10-24 Thread Depth 0.4688 in Thread Type Coarse Material Zamac Alloy Finish Plain Drill Bit Size 3/8 in Minimum Installation Depth 5/8 in System of Measurement Inch Expansion Anchor Type Caulking Anchor Material Grade/Class Not Graded Compatible Material Block Brick Concrete Stone Installation Method Machine Screw Minimum Hole Depth 5/8 in Manufacturer Location Made in USA