Flange Nut Material Grade/Class 18-8 Material Stainless Steel Finish Plain Thread Size 3/4 In.-10 Hex Width 1 1/4 in Hex Height 3/4 in Flange Diameter 1 5/8 in System of Measurement Inch Flange Thickness 0.25 in Hex Type Flange Nut Overall Height 1 in Pack Size Small Pack Rockwell Hardness 27 Rockwell Thread Direction Right Hand