Rivet Nut System of Measurement Inch Insert Diameter 3/8 in Overall Length 37/64 in Thread Size 1/4 In.-20 Thread Type Coarse Flange Diameter 0.415 in Flange Thickness 0.022 in Material Steel Finish Plain Compatible Material Metal Drill Bit Size 3/8 in Maximum Hole Diameter 0.375 in Minimum Material Thickness 0.03 in Maximum Material Thickness 0.165 in Insert Nut Type Rivet Nut Body Length 37/64 in End Type Open Flange Style Flush Package Quantity 40