Rivet Nut System of Measurement Inch Insert Diameter 3/8 in Overall Length 1 1/16 in Installed Length 1/2 in Thread Size 1/4 In.-20 Thread Type Coarse Flange Diameter 0.645 in Flange Thickness 0.059 in Material Steel Material Grade/Class 1008/1010 Finish Zinc Yellow Body Texture Smooth Compatible Material Metal Drill Bit Size 25/64 in Maximum Hole Diameter 0.39 in Minimum Material Thickness 0.02 in Maximum Material Thickness 0.28 in Insert Nut Type Rivet Nut Body Type Bulbed