SpecificationASME B107.100-2010, B107.4-2005Overall Length3.27Wrench Size1-13/16Opening Shape12Wrench End TypeFlare NutWrench Body TypeStraightWrench VariationStandardDrive TypeInternal SquareDrive Size1/2Center-to-Center Distance1.50Head Thickness1.00Fastener NumberBACN10YAMaximum Torque (IN*LBS)1600Wrench Head Wall Opening1.31