Flange Bolts Dimensional Standards IFI-111 Drive Hex Drive Size 9/16 in Fastener Length 1 in Finish Black Oxide Flange Diameter 13/16 in Flange Type Standard Head Height 25/64 in Head Width 9/16 in Manufacturer Location Globally Sourced Material Steel Material Grade/Class Grade 8 Material Quality Standards SAE J429 Minimum Thread Length 1 in Pack Size Small Pack System of Measurement Inch Tensile Strength 150 000 psi Thread Size 3/8 In.-24 Thread Style Fully Threaded