Rivet Nut System of Measurement Inch Insert Diameter 1/2 in Overall Length 23/32 in Thread Size 5/16 In.-18 Thread Type Coarse Flange Diameter 0.5625 in Flange Thickness 0.022 in Material Aluminum Finish Plain Compatible Material Metal Drill Bit Size 1/2 in Maximum Hole Diameter 0.5 in Minimum Material Thickness 0.03 in Maximum Material Thickness 0.165 in Insert Nut Type Rivet Nut Body Length 23/32 in End Type Open Flange Style Flush Package Quantity 25