Self Locking Thread Insert, Compatible Material Metal, Compatible Tap Size 1/2 In.-13, Drill Bit Size 27/64, External Thread Fit 2A, External Thread Size 1/2 In.-13, Finish Plain, Insert Diameter 1/2 in, Internal Thread Fit 2B, Internal Thread Size 5/16 In.-18, Material Stainless Steel, Material Grade/Class 316, Maximum Hole Diameter 0.422 in, Minimum Installation Depth 9/16 in, Overall Length 31/64 in, System of Measurement Inch, Thread Direction Right Hand, Thread Type Coarse, Fine