Rivet Nut System of Measurement Inch Insert Diameter 25/64 in Overall Length 45/64 in Installed Length 3/8 in Thread Size 1/4 In.-20 Thread Type Coarse Flange Diameter 0.455 in Flange Thickness 0.022 in Material Steel Material Grade/Class 1008/1010 Finish Zinc Yellow Body Texture Knurled Compatible Material Metal Drill Bit Size 25/64 in Maximum Hole Diameter 0.391 in Minimum Material Thickness 0.165 in Maximum Material Thickness 0.26 in Insert Nut Type Rivet Nut