Tension Control Bolt Structural Button Head Grade A325 Steel Finish Plain Thread Size 3/4-10 Overall Length 2 3/4 In Thread Length 1 3/8 In Thread Type UNC Thread Direction Right Hand Head Dia 1 9/16 In Head Height 15/32 In Tensile Strength Min 120 000 PSI Rockwell Hardness HRC 34 Max Meets/Exceeds ASTM F1852 Type 1 Includes Grade DH Heavy Hex Nut and F436 Washer Package Quantity 250