Allen Nut System of Measurement Inch Insert Diameter 9/32 in Overall Length 17/64 in Installed Length Not Applicable Thread Size #8-32 Thread Direction Right Hand Thread Type Coarse Flange Diameter Not Applicable Flange Thickness Not Applicable Material Steel Material Grade/Class Grade 2H Finish Black Oxide Body Texture Knurled Compatible Material Metal Drill Bit Size 19/64 in Maximum Hole Diameter 0.298 in Minimum Material Thickness 0.273 in