Self Locking Thread Insert Compatible Material Concrete Compatible Tap Size Not Applicable Drill Bit Size 3/4 in External Thread Fit Not Applicable External Thread Size Not Applicable Finish Zinc Plated Insert Diameter 3/4 in Internal Thread Fit 2B Internal Thread Size 1/2 In.-13 Material Steel Material Grade/Class Grade B7 Maximum Hole Diameter 0.75 in Minimum Installation Depth 1 5/8 in Overall Length 29/32 in System of Measurement Inch Thread Direction Right Hand