Rivet Nut System of Measurement Inch Insert Diameter 1/4 in Overall Length 19/32 in Thread Size #10-32 Thread Type Fine Flange Diameter 0.40625 in Flange Thickness 0.038 in Material Aluminum Finish Plain Compatible Material Metal Drill Bit Size 1/4 in Maximum Hole Diameter 0.25 in Minimum Material Thickness 0.08 in Maximum Material Thickness 0.13 in Insert Nut Type Rivet Nut End Type Open Flange Style Flanged Package Quantity 50