Metric Structural Bolt Carbon Steel Fastener Finish Plain Dia/Thread Size M12-1.75 Fastener Length 45 mm Fastener Thread Type Metric Coarse Fastener Industry Standards EN 14399-4 Thread Length 23 mm Fastener Thread Direction Right Hand Head Dia 22 mm Head Height 8 mm Tensile Strength (PSI) 1 000 N/sq mm Rockwell Hardness C32 to C39 Package Quantity 100