Lag Shield Anchor Diameter 1/2 in Overall Length 3 in Screw Size 1/2 in Thread Size 1/2 In.-13 Thread Depth 1.875 in Thread Type Lag Bolt Material Zamac Alloy Finish Zinc Plated Drill Bit Size 3/4 in Minimum Installation Depth 3 in System of Measurement Inch Expansion Anchor Type Lag Shield Anchors Material Grade/Class Not Graded Compatible Material Block Brick Concrete Drywall Installation Method Lag Screw Minimum Hole Depth 1/2 in Manufacturer Location Made in USA