Key Locking Thread Insert System of Measurement Inch Insert Diameter 9/16 in Overall Length 5/8 in Internal Thread Size 7/16 In.-14 Internal Thread Fit 3B External Thread Size 9/16 In.-12 External Thread Fit 2A Thread Direction Right Hand Thread Type Coarse Material Stainless Steel Finish Plain Wall Type Thin Wall Number of Locking Keys 4 Compatible Material Metal Compatible Tap Size 9/16 In.-12 Drill Bit Size 33/64 in Minimum Installation Depth 5/8 in