Self Locking Thread Insert Compatible Material Metal Compatible Tap Size 5/16 In.-24 Drill Bit Size I External Thread Fit 2A External Thread Size 5/16 In.-24 Finish Plain Insert Diameter 5/16 in Internal Thread Fit 2B Internal Thread Size M4-0.70 Material Stainless Steel Material Grade/Class 18-8 Maximum Hole Diameter 0.272 in Minimum Installation Depth 3/8 in Overall Length 5/16 in System of Measurement Inch/Metric Thread Direction Right Hand Thread Type Coarse Fine